I described Nostr to someone recently.
When I got on the part about the zaps, they said that's a good idea, but can you do it in fiat?
The problem with fiat is that you have to go through a bank!
The people in the bank have to get paid.
The bank has to know who you are.
The bank has to be sure that they agree with you politics in order to facilitate your business.
Bitcoin is automatic, apolitical and non-descriminatory.
It just works!