I sort of disagree in the sense that barter works better in 1:1 or micro groups (granted) but it doesn't work that well in low to medium complexity groups where, for example, my ability to do XYZ depends upon the seasons and I meed a store of value to trade later.
You need something liquid. PMs are good because they have a lot of uses, preserve easily, and are light weight. There's been a number of commodity backed currencies in the past too. For instance, whisky, corn, tobacco banks
I sort of disagree in the sense that barter works better in 1:1 or micro groups (granted) but it doesn't work that well in low to medium complexity groups where, for example, my ability to do XYZ depends upon the seasons and I meed a store of value to trade later.
You need something liquid. PMs are good because they have a lot of uses, preserve easily, and are light weight. There's been a number of commodity backed currencies in the past too. For instance, whisky, corn, tobacco banks