As I understood, if LN were to ever run over BTC-bound side-chains (such as Liquid), it would enable rapid and low-cost opening / closing of millions of LN channels - necessary to serve a global population
By rolling up channel opening / closing fees on a side chain, high fees on the base chain would become acceptable, which is great for long term BTC security
A "third layer" basically.
Unfortunately I have no idea how any of that would work in practice and how interoperable it would be with existing LN standards.
I could see that happening I think LN channels can be offset in a range of ways, Base-chain, LIquid, Channel factories, and if we do get drive-chains you could probably broadcast off those UTXOs too, if you have 4 environments to choose from you can pick the ones or the time in which to settle back at the cheapest rate
Hopefully, we could have something that can recommend the best paths, even something like payjoins in and out of LN could help make open and closing cheaper
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