Replying to Avatar Melvin Carvalho

Pull request for drive chains, possibly the biggest chang in bitcoin's history.

IMHO two issues remain:

1. From a user POV the game theory starts off stable then quickly becomes unstable when you plug in real world values. Therefore, there is a chance that participants will lose the coins they lend to the miners, due to the much weaker security of drivechains.

2. While DC has the good idea of trying to deter reorgs due to tail emissions and preventing a the need for the fork. It comes at the cost of any of the 256 coins blowing up and then spreading up to the main chain, which would require a fork too, to put right. So instead of one vector for a fork, there would be 256.

Consequently, I dont think drivechains are ready to merge. Some changes to the concept to improve the security, and to limit the risk of a fork could see it, or something like it, become part of the bitcoin eco system, in the future.

luke-jr wants to merge 17 commits into bitcoin:master from luke-jr:bip300

https://github.com/bitcoin/bitcoin/pull/28311

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fiatjaf 2y ago

Dishonest take. I didn't expect this from you, Melvin.

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Melvin Carvalho 2y ago

Why? Find a flaw.

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fiatjaf 2y ago

My main objection is with the fact that you describe it as THE BIGGEST CHANGE, which makes it look like a very disruptive thing, when it is in fact a change designed specifically to not affect uninterested Bitcoin users at all and introduce almost zero overhead and complexity.

c7
c76604d2... 2y ago

I mean, if that change doesn't affect me as user, what incentive I would have to vote that fork positively? Seems weird

The other thing is forks involve enormous political complexity, so you can't say in the practice that this change isn't complex. If it requires a fork, it will always be complex.

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Melvin Carvalho 2y ago

If drive chain folks are calling for a fork even before we start, there is a non trivial chance that they do if some of the 256 chains become successful.

The problem with forks are that you might end up with two coins, and that affects everyone.