Likes are the simplest social signal you can send. Our problem is that Big Social has bent social signals into algorithms optimized for engagement. The social signals themselves are not evil. I think money is a worse proxy for value than simple signals like “approval” that humans have been using forever. Some people are poor and will be under-represented. Some people are rich and can send huge zaps. I’m not interested in the market value of peoples notes. I’m interested in learning from them, being entertained, keeping in touch with friends I’m not with. Micropayments are great for many things. But let’s not build all relationships on money. Trust is where it’s at.