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This analogy is completely useless for illustrating threat or threat resistance to quantum computers
And there is also another problem. Even if a solution is implemented IMMEDIATELY, all the money must be mived from from the old to the new addresses, which will take time since the block space is limited. And I also don't really know how long the time between quantum becoming clear that it will be an issue and the time it becomes an actual issue, so that's another problem.
Are there quantium resistant algorithms that are feasible for bitcoin (small enough signature to fit in the blocks)?
To be honest that is a bad analogy. The pin code has three attempts, cracking the private key doesn't have retry limits.
When that happened to you, did it resolve itself when you got back to a place with a normal internet without any manual intervention?
That's good that there is a metadata field... I don't know what I was reading, but I didn't see it.
Maybe the idea should be restarted. It seems easy to implement.
Does lightning invoices have a place where such a flag can be placed without breaking wallets that don't recognize it?
Why did people started using gaming for gambling? Gaming used to be used for computer games...