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Comment Re:the real question (Score 2) 394

Nothing can fuse "practically any matter", at least and get energy output. As elements get heavier, you get less energy out of fusing them. The breakeven point (with the exception of a few exceptional isotopes a little further up) is iron. Past iron you have to put in energy to get fusion. Heavier elements produce energy when they split up, which is why nuclear fission is a thing and is done with very heavy elements.

186,000 Miles per Second. It's not just a good idea. IT'S THE LAW.