Agreed that there is a lot of hype around quantum. Hard to predict if/how/when practical applications will be developed.

The history of cryptographic systems shows that they tend to fall over long enough time scales. For this reason, my baseline expectation (Baysian prior) is that weaknesses in ECDSA will eventually be found and exploited. Whether by conventional computing or quantum.

As long as these weaknesses are discovered and exploited slowly, #Bitcoin can adapt. We can soft-fork in new signature schemes. The bulk of existing UTXOs can be migrated, even if a few get cracked in the process.

A zero-day fast crack of ECDSA would break “your keys, your coins”. This is the only existential threat to Bitcoin that I know of. Fortunately, it seems incredibly unlikely.

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Yeah I see it much differently. Bitcoin is the missing language to quantum mechanics; it’s the same system of rules as Bitcoin. Like identical. A peer to peer electron(ic) cash system just is the transactional mechanics which uphold conservation of energy.

There’s a quantum computer, it’s called Bitcoin. There is no second best. The most important thing for a quantum computer to compute is perfect money, that’s already been computed….No one wants to admit we’ve all been wrong for 16 years. We as users compute the meaning to our UTXOs, not central authority.

I believe ECDSA is a mathematical and universal thermodynamic limit. The premise of quantum computing is that you can force close state and brute force coherence via artificial temperature without any recognition of the energy required to for a shared resolution process.

It’s attempting to break Planck Time, yet Bitcoin and Lightning specifically highlights the ability for unresolved states to exist between Blocks. It’s fiat.

Bitcoins biggest vulnerability is in the social domain, where users are convinced to adopt a BIP/hardfork to protect against something the universe fundamentally doesn’t allow. Trust the physicists; we’re too stupid to understand quantum mechanics.