What would be your thoughts on using energy, in any form, as a means of exchange. With advances in sub-atomic science and other things i certainly dont understand, it would seem to me that eventually any commodity based exchange would become obsolete. This despite the costs mentioned in the article, as my question is purely theoretical and im assuming that eventually the process is simplified and made more efficient thus less costly. The point being, if we can change elements at will, it really throws a wrench in the whole scarcity thing. Once that point was achieved is it possible that the only scarce resource left to us would be energy? As it is never created or destroyed and only changes form, thus there is a fixed amount and could never be counterfited, do you think energy would make for a workable medium of exchange? Do you think that given the correct system, it would be a better medium of exhange than what we are using now?
It should be noted that it would be subject to a constant source of “inflation” via the sunlight always falling on the earth and our ability to store and use that. However once an element of scarcity has been removed from all commodities, given a certain amount of energy, and given the unique quality of energy to actually do work, does that create the possibility perhaps for a new economic system? I don’t know, this was simply a passing though after reading the mentioned article, i confess i have not spent much time dwelling on the subject and im sure it will be swiftly refuted by beautiful logic 
thanks.