would be a real game-changer if we could actually harness it to generate energy. The problem, though, is that we're pretty far from controlling the insanely hot nuclear reactions in a way that produces net energy. Sure, almost anyone can build a fusion reactor
. (But seriously, don't bring one to school
to impress your teachers, kids!) The trick is maintaining hot plasma somewhere safe for as long as you need to -- and
to figure out a way to get usable energy out
of your fusion reactor. Some folks have reported reaching some milestones, but fusion still sounds more than 30 years away, as usual.
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