so why does it still take me 3+ business days to move money between banks? I assume it's just because they use that float to make money, but it still sucks. i for one like transactions clearing in a few seconds rather than a few days.
In fact, among the interesting properties of Bitcoin, I'd rate transaction speeds as the least relevant - chiefly because network throughput and transaction speed is actually pretty poor if you compare it to what is achievable with classical tech.
This is one of the reasons crypto is a great solution though. You don't have to rely on institutions for the infrastructure.
I agree that there's no technical reason. For example, "crappy infrastructure" is an economic reason why fast bank transfers wouldn't work. I'm evaluating bitcoin as a political/economic tool.
Honestly, how much money one needs to move that the cost of the operation actually matters?