If you wanted the cars that I sold and I wanted your grain, we would instantly know the quality of each other’s products, instantly trade, and be done. Why bother with all the costs involved in supporting a currency (among which is the cost of preventing counterfeiting) if you can barter costlessly?

I guess this is why everything is free in Star Trek. You just whip out your Tricorder to instantly know a product’s quality and then call Scotty to transport it to your house…Oh no, wait. Is there an opportunity cost in spending that time? You could have been drinking lemonade or learning a foreign language instead of transacting. Shit. That means they would need money. That means Star Trek is founded on a lie!! Damn you economics. DAMN YOU TO HELLL!!!!!!