Others (like myself) get defensive when their convictions are dismissed out of hand. And hence crypto/blockchain threads here tend to be the most polarizing.
- From the original Bitcoin paper.
The really hard problems of trust in transactions aren’t really about actual transfer of currency but stuff related stuff like can I change my mind, am I getting what I think I paid for, etc.
Bitcoin, at great resource cost, tries to solve the problem of trust that most people don’t actually have.
- Global financial settlement, including multi-party and Very Large sums, in under an hour for a few dollars.
- Collateralized permissionless loans
- Global Open-source computing in a shared execution environment
- Proof of ownership that's quickly verifiable
- Insurance settlements
There's a limitless amount of bespoke use cases as well, as we'll continue to see pop up over the next decade.