Riches are the result of unrealized social interaction. Meaning that something of value has been given, but something of equal value has not yet been returned.

Riches are the result of unrealized social interaction. Meaning that something of value has been given, but something of equal value has not yet been returned. Holding someone's promise to return on that value later is what makes someone rich. Language barriers, political barriers, geographic barriers, etc. often prevent people from establishing the necessary social connections. We've made tremendous strides in reducing those barriers but they have not been eliminated.