We've had fusors(first invented by Philo T. Farnsworth, who also invented the first all-electric television) for a long time, so if we really really needed more helium we could make it. It wouldn't be cheap though.
The problems we have with fusion are about keeping it going and extracting net energy from it.
This comment has managed the impressive feat of being the stupidest thing I have read on reddit all week. Helium is a noble gas — a class of elements named for the fact that it does not form compounds with other elements. Helium is not bound up with anything.
Natural deposits and alpha decay (which is where those deposits come from) are the only way we get helium. Full stop. There is no smelting or other chemically extractive process for refining because helium does not form compounds.
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u/[deleted] Jul 18 '24
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