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🔗 Starting from Thunderbolt, Re-examining the Design Logic of the Bitcoin Lightning Network

Why Can’t Bitcoin Buy Coffee?
When mentioning Bitcoin, most people first think of its attributes of ‘decentralization’ and ‘immutability’. However, when you actually want to use it to buy a cup of coffee, you will quickly encounter an awkward problem: waiting for transaction confirmation takes longer than waiting for the coffee, and sometimes the transaction fee is even more expensive than the coffee itself. Assets on Bitcoin are still ‘as immovable as a mountain’ — mainly relying on HODL, unable to be lent, combined, or interoperate.