Did you even read what you linked? It says "We’ve long ago depreciated the cost of the machines. The ongoing cost of running these machines is negligible."
Does that sound "untenably" large?
> Even the fastest implementations take days to sync
You realize it has been going for five years right?
> You clearly have no idea how lightning works, so why do you keep commenting as if you do? Nothing about this claim is true.
Your evidence of <<nothing at all>> is pretty weak. You basically replied to say "nuh uh". In other comments you claim that certain things don't work when other people point out there there are many examples of it working already.
How exactly does someone who gets a balance on a 3rd party lightning channel use that money on the main chain without syncing with the chain? Until they get it on the chain it isn't a bitcoin balance and to make that transaction is going to cost a significant amount.
False. This is for some sort of pruned SPV node or something. A full node takes multiple terabytes. Even the fastest implementations take days to sync, if you're lucky.
https://tjayrush.medium.com/building-your-own-ethereum-archi...
> Which means that no one can use that balance for weeks or months
You clearly have no idea how lightning works, so why do you keep commenting as if you do? Nothing about this claim is true.