Are banks a Ponzi scheme? What's fractional reserve? Should people take self-custody of their wealth?

Watch  nostr:npub1aftmyhm62lrp6lwsha3yzyjy5kqdvuy7g23qg28a8q0cnmudv0ds0sdcke & me (I'm coming in on 04:30!) chatting about it.
 nostr:npub1t8a7uumfmam38kal4xaakzyjccht4y5jxfs4cmlj0p768pxtwu8skh56yu

https://m.primal.net/KugH.jpg 

Video here: https://www.youtube.com/watch?v=jESlK7ZMBmU