There are other sources of energy. With helium, once it's gone, there's nothing to replace it.

Well, there is; you can just wait for more helium to be produced underground. That's the same method that provided the helium we have now.

wongarsu an hour ago | parent | prev [-]

Jupiter's atmosphere is about 25% helium. And then there's the other gas giants, and the sun itself (also about a quarter helium)

We risk running out of cheap helium. But if you are willing to pay infinite money there is near-infinite helium

	▲	A_D_E_P_T an hour ago \| parent [-]
		Right now, even with infinite money, you have no way to extract helium from Jupiter and return it to Earth. (To say nothing of the Sun!) Maybe with a couple hundred more years of technological development... Our moon itself is said to have ~1M tons of very valuable Helium-3 in surface deposits, but even that's nigh impossible to harvest commercially right now.