Talk:Machines/@comment-24.113.60.228-20150126071203/@comment-24791914-20151213161833

Fusion only releases (that is, gives you more than you put in) energy until you get to iron. And fission actually only work for very heavy elements, and even then only certain isotopes. So you're forcing atoms to split in a way that in not even remotely normal.

P.S. Which is why you don't get energy from splitting the stuff, especially since elements don't split IN HALF, even when they CAN split. As for not getting energy from the fusion, that is because it takes alot of energy to contain the plasma and prevent it escaping the reactor-thingie.