nostr:npub1h8nk2346qezka5cpm8jjh3yl5j88pf4ly2ptu7s6uu55wcfqy0wq36rpev explaining #drivechains on Bitcoin Audible is definitely worth listening to 🔥
I still don’t know how I feel about it, but I think it’s an important topic
My biggest concern is that Bitcoin full nodes will become more complex and need to validate against external side-chains too, thus require more data.
As it is, the steady blockchain growth-rate makes full-node storage capacity predictable.
This removes that predictability.
With BMM you dont need to validate it, you just get a hash of the state of the side chain, hence "blind". At least that's how I understood it.
I could have misinterpreted it.
IMHO the success of Bitcoin depends largely on cheap full nodes without additional complexity.
Having extra functionality that only poses risks for opt-in users is no biggie as long as the risk and complexity doesn't spill over to those who choose not to opt in.
Thanks to BIP300 it has no impact on nodes, all they have to do is verify that 50% of miners "voted" for a peg-out, over multiple months.
So there is impact, even if small. Just trying to guage the severity.
If part of the validation process is to index over side-chains, then it becomes unacceptable IMO.
If validation stays 100% on the Bitcoin blockchain, and increases validation complexity (and time) with a small and predictable amount, OK.
They don't have to know what's going on on the sidechain, the impact is similar to verify a proof of work, just make sure that during the N last blocks, most miners accepted the transaction.
But that's what creates most of the ongoing debates, are the incentives correctly aligned to trust most miners?
