Thanks for the detailed reply. I hadn’t considered the difference between money and currency before. Maybe I still don’t fully understand it because I still think there would be an advantage to hoarding currency in any system where others are prepared to exchange goods or labour for that currency.
Trade would surely still occur, and it would be possible to profit from said trade. That profit would enable the trader to live a more luxurious life than those who make less or no profit, because he would be able to acquire more goods and have more work done for him by spending the profit. Consumerism would happen.
Even in a post-scarciry world I think we’d still have Ferengi.
I appreciate the reading recommendations. These are some fascinating ideas to understand for sure.