blockchains scale. when you fill up a blockchain, you make another one. this is what happens naturally and it will always happen. this is the market's preferred method of making more room for transactions and this has not changed for over a decade.
you're missing an opportunity because most blockchains when they are created are not denominated in BTC. most blockchains do not pay bitcoin miners (neither does cashu). most blockchains are completely independent and isolated from each other. the have names like "monero" and they completely displace bitcoin in the darknet marketplaces and make you seethe and tell lies behind a keyboard. but this is all avoidable.
bitcoin currently lacks the native primitives required to connect multiple blockchains together, protect them all at the same time, and harvest all their fee revenue. at best, bitcoin can only emulate this via federations. some people think that will be good enough, others want to try hashrate escrows or covenant opcodes. then we have you, making centralized garbage which doesn't sustain the bitcoin miners. cashu has no meaningful adoption.
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