I apologize if I posted this in the wrong area. Hopefully, I chose correctly. I guess my question is linked to the composition of matter and our ability to manipulate it. If all things are made out of atoms (hence electrons, protons and neutrons), why can't scientists create food? As bizarre as it sounds, the substances we eat must contain protons, electrons and neutrons. If we can strip electrons off a metal, and we can shoot protons beams at objects, what is stopping us from creating food like the replicators do on Star Trek?