I just ended up thinking about entropy.
I wondered how you could make a profit because to get the energy out you have to spend energy to make the AM. But then the Positive matter has already been made so you only need to make half of it. From there I started thinking about Fusion power where you get the energy out of sea water because the energy was placed into it at the beginning of time or whatever. From there I ended up considering mining sunlight from a star, but that's not infinite either. Eventually even the star will die. So clearly there is no such thing as an infinite energy source. It makes a clear argument for entropy. One day the universe will die. In about a billion years we might flee to another universe, but clearly even that will die. Which is more disturbing, that everything will die eventually or that I am getting depressed about soemthing that won't happen for maybe 14 billion years
