Avatar
[bit] max⚡️
aa8de34ff8b18ac3cc56decdfe56f17ec3007385993c834c9b99c839a6ffe696
entrepreneur . bitcoin advocate . data scientist and cybersecurity analyst, auditor and researcher #codeislaw #decentralize #ruleswithoutrulers
Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve - it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve - it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve - it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve - it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve - it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve - it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

Replying to Avatar [bit] max⚡️

19\. März 2025

### 🔐 1. SHA-256 is Quantum-Resistant

Bitcoin’s **proof-of-work** mechanism relies on SHA-256, a hashing algorithm. Even with a powerful quantum computer, **SHA-256 remains secure** because:

- Quantum computers excel at **factoring large numbers** (Shor’s Algorithm).

- However, **SHA-256 is a one-way function**, meaning there's no known quantum algorithm that can efficiently reverse it.

- **Grover’s Algorithm** (which theoretically speeds up brute force attacks) would still require **2¹²⁸ operations** to break SHA-256 – far beyond practical reach.

++++++++++++++++++++++++++++++++++++++++++++++++++

### 🔑 2. Public Key Vulnerability – But Only If You Reuse Addresses

Bitcoin uses **Elliptic Curve Digital Signature Algorithm (ECDSA)** to generate keys.

- A quantum computer could use **Shor’s Algorithm** to break **SECP256K1**, the curve Bitcoin uses.

- If you never reuse addresses, it is an additional security element

- 🔑 1. Bitcoin Addresses Are NOT Public Keys

Many people assume a **Bitcoin address** is the public key—**this is wrong**.

- When you **receive Bitcoin**, it is sent to a **hashed public key** (the Bitcoin address).

- The **actual public key is never exposed** because it is the Bitcoin Adress who addresses the Public Key which never reveals the creation of a public key by a spend

- Bitcoin uses **Pay-to-Public-Key-Hash (P2PKH)** or newer methods like **Pay-to-Witness-Public-Key-Hash (P2WPKH)**, which add extra layers of security.

### 🕵️♂️ 2.1 The Public Key Never Appears

- When you **send Bitcoin**, your wallet creates a **digital signature**.

- This signature uses the **private key** to **prove** ownership.

- The **Bitcoin address is revealed and creates the Public Key**

- The public key **remains hidden inside the Bitcoin script and Merkle tree**.

This means: ✔ **The public key is never exposed.** ✔ **Quantum attackers have nothing to target, attacking a Bitcoin Address is a zero value game.**

+++++++++++++++++++++++++++++++++++++++++++++++++

### 🔄 3. Bitcoin Can Upgrade

Even if quantum computers **eventually** become a real threat:

- Bitcoin developers can **upgrade to quantum-safe cryptography** (e.g., lattice-based cryptography or post-quantum signatures like Dilithium).

- Bitcoin’s decentralized nature ensures a network-wide **soft fork or hard fork** could transition to quantum-resistant keys.

++++++++++++++++++++++++++++++++++++++++++++++++++

### ⏳ 4. The 10-Minute Block Rule as a Security Feature

- Bitcoin’s network operates on a **10-minute block interval**, meaning:Even if an attacker had immense computational power (like a quantum computer), they could only attempt an attack **every 10 minutes**.Unlike traditional encryption, where a hacker could continuously brute-force keys, Bitcoin’s system **resets the challenge with every new block**.This **limits the window of opportunity** for quantum attacks.

---

### 🎯 5. Quantum Attack Needs to Solve a Block in Real-Time

- A quantum attacker **must solve the cryptographic puzzle (Proof of Work) in under 10 minutes**.

- The problem? **Any slight error changes the hash completely**, meaning:**If the quantum computer makes a mistake (even 0.0001% probability), the entire attack fails**.**Quantum decoherence** (loss of qubit stability) makes error correction a massive challenge.The computational cost of **recovering from an incorrect hash** is still incredibly high.

---

### ⚡ 6. Network Resilience – Even if a Block Is Hacked

- Even if a quantum computer **somehow** solved a block instantly:The network would **quickly recognize and reject invalid transactions**.Other miners would **continue mining** under normal cryptographic rules.**51% Attack?** The attacker would need to consistently beat the **entire Bitcoin network**, which is **not sustainable**.

---

### 🔄 7. The Logarithmic Difficulty Adjustment Neutralizes Threats

- Bitcoin adjusts mining difficulty every **2016 blocks (\~2 weeks)**.

- If quantum miners appeared and suddenly started solving blocks too quickly, **the difficulty would adjust upward**, making attacks significantly harder.

- This **self-correcting mechanism** ensures that even quantum computers wouldn't easily overpower the network.

---

### 🔥 Final Verdict: Quantum Computers Are Too Slow for Bitcoin

✔ **The 10-minute rule limits attack frequency** – quantum computers can’t keep up.

✔ **Any slight miscalculation ruins the attack**, resetting all progress.

✔ **Bitcoin’s difficulty adjustment would react, neutralizing quantum advantages**.

**Even if quantum computers reach their theoretical potential, Bitcoin’s game theory and design make it incredibly resistant.** 🚀

Overall very good summary and explanation why Bitcoin is already designed with resistance to attacks even of possible future Quantum Computers. Satoshi even explicitly mentioned this.\

One weakness is point 5 which a common mistake to assume that there is a cryptographic puzzle to solve **- it is not. It is a brute force approach to find a fitting hash with certain demand of leading zeros.**

The details here are not quite correct. There is no complicated math riddle to solve. It is more a brute force operation to find a hash with the correct amount of leading zeros.

I did a research on this for the Bavarian States Bank some month ago. They are clueless how to implement this. They even do not agree on what it should be based and they deny to use current working solutions like stable coins ... which would be the closest for a working solution.

Yes, true - identifying and acceptance of an issue is key ... only to end in desaster if politicians "solving" it.

"When the Liberal Party (Swedish political party Liberalerna) proposes mandatory porn filters on all mobile phones "to protect children and youth," it might appear they’re on the right track"

I would strongly disagree - liberal socialist solutions in itself are always a communist superstimulus ...

Education and getting rid of state / corporate monopolies is the better way. nostr:naddr1qqxnzde5xqunydpk8yergv3kqgsyydpz8xtvue2fwg8xdhttcjaha7ulyhrqcjqk677y0fj7rkqdkfqrqsqqqa28hpx4wj

#Amber #Nostr #Keys nostr:naddr1qqxnzde5xqmnqwp58ymrvdfeqgspcx0tr2wktds02sn6xrlrujk6yghd9dg6cntjy0dp2v95ughmp0qrqsqqqa28l4udxe

Nostr Reviews nice ... nostr:naddr1qqxnzdenxverjde38qer2dfsqgspcx0tr2wktds02sn6xrlrujk6yghd9dg6cntjy0dp2v95ughmp0qrqsqqqa282etncc

Signal's CEO: Then We're Leaving Sweden

The government wants Signal and Whatsapp to be forced to store messages sent using the apps. If it becomes a reality, we'll leave Sweden, says Signal's CEO Meredith Whittaker to SVT News.

» Published: February 25 2025

https://swedenherald.com/article/signals-ceo-then-were-leaving-sweden

nostr:naddr1qvzqqqr4gupzq4te6hqp5zea2kxyuchr2ftqv5ylcnl0pnuhvxc7rl5tj0d3qn0dqqe5xctjvfej6ctjv4hz6apdw35x2ttswfhkymr9d5khjmm4wgkk2mnkd9ex7mndv4h8gttfwvkk2wfcxaehs9fmhpr

Die EU ist in jeder Hinsicht pleite. Der Besuch von Vance eine Höflichkeit zum "Absch(l)uss".

nostr:naddr1qvzqqqr4gupzpnl3wg880wcx3u8th5ufmn2ssgkartyd9tqtpa0ssq9wnc2u0c4jqy88wumn8ghj7mn0wvhxcmmv9uq3uamnwvaz7tmwdaehgu3dwp6kytnhv4kxcmmjv3jhytnwv46z7qqdxymngvpjxs6rqde3xs6nqq23sqx

nostr:naddr1qvzqqqr4gupzq9eemymaerqvwdc25f6ctyuvzx0zt3qld3zp5hf5cmfc2qlrzdh0qq5y6nzn94hhvetj948x7um5wgknyvnwvsk5vetzwf6kzune95erqv3494kkvdtgxfss8pxsey