[MD] From each... to each

[craigerb at comcast.net]

SA,
I don't see $ as a rigid value (except in the economic sense that the supply of $ is kept relatively stable.)  In MOQ terms $ is dynamic.  In a voluntary economic system, $ (or its equivalent) is a means to store value.  Otherwise, in economic exchanges I could only satisfy current needs & never save for the future.  By saving, a multitude of future possibilities opens up for me.
In addition, $ helps me weigh value.  I can either 1) buy an original oil painting or 2) buy a print & take a vacation, because (let us say) 1) & 2) cost the same.
Craig