Scenario 1:
The argument: "Yeah Bitcoin is cool, but ultimately when push comes to shove the major governments are going to outlaw it, drive it into the black market as a small asset, and issue a replacement that they back as legal tender."
The steelman: This is a valid concern. Governments have a history of trying to control or even ban cryptocurrencies that they see as a threat to their financial systems. However, there are a few reasons why I think it is unlikely that governments will be able to completely outlaw Bitcoin.
First, Bitcoin is a global currency. It is not controlled by any one government or entity. This makes it very difficult for governments to ban it outright.
Second, Bitcoin is very popular. There are millions of people around the world who own Bitcoin. If governments were to try to ban it, they would likely face a lot of resistance from their citizens.
Third, Bitcoin is very secure. The underlying technology that powers Bitcoin is very difficult to hack. This makes it unlikely that governments would be able to successfully shut down the Bitcoin network.
Of course, it is impossible to say for sure what the future holds for Bitcoin. However, I believe that the factors I have mentioned make it unlikely that governments will be able to completely outlaw it.
Scenario 2:
The argument: "Look how fast they are advancing on superconductors. Quantum computing may come sooner than we think, and threaten Bitcoin's security. That's why I don't buy bitcoins."
The steelman: This is also a valid concern. Quantum computers have the potential to break the encryption that secures Bitcoin transactions. If this were to happen, it would be a major setback for Bitcoin.
However, there are a few reasons why I think it is unlikely that quantum computers will pose a serious threat to Bitcoin in the near future.
* First, quantum computers are still in their early stages of development. It is not clear when they will be powerful enough to break Bitcoin's encryption.
* Second, there are already steps being taken to make Bitcoin more quantum-resistant. For example, the Bitcoin Core development team is working on a new version of the software that will use more secure cryptographic algorithms.
* Third, even if quantum computers do become powerful enough to break Bitcoin's encryption, it is not clear that they would be able to do so without being detected. The Bitcoin network is very transparent, and any attempt to attack it would likely be noticed by the community.
In conclusion, I believe that the risks posed by quantum computers to Bitcoin are real, but they are not insurmountable. There are a number of factors that make it unlikely that quantum computers will pose a serious threat to Bitcoin in the near future.