The question is, is there anything else that is universally useful that we can use as a basis for the currency? How about something like Amazon Turk? Except yo

The question is, is there anything else that is universally useful that we can use as a basis for the currency? How about something like Amazon Turk? Except you don't get paid in cash, you get paid in points. All points had to have been generated by somebody doing a small, useful service for somebody else.