See also: Microsoft and
Here's a few choice quotes:
Although now rejected by mainstream science, vitalism has a long history...
Vitalism is no longer philosophically and scientifically viable...
By 1931, "Biologists have almost unanimously abandoned vitalism as an acknowledged belief."
You said it slowly dissipates into space. That means the rate it leaves the atmosphere is low, so the rate it is replenished is low, and that's the limiting extraction rate.
According to this (that didn't take long), the rate Helium leaves the atmosphere is 50g/s, or 3e5 cm^3/s. The National Helium Reserve is 1e9 m^3. So, extracting all of the Helium from the atmosphere before it escapes, it would take 1e9 m^3 / (3e5 cm^3/s), or over 100 years to replace the reserves.
But extracting all of it is hopelessly unrealistic. I don't know, but it seems even 1% would be ambitious. So now we're looking at tens of thousands of years.
So either the national reserve is ridiculously large, or removing it from the atmosphere is not going to be a solution to the shortage. Right? Or am I missing something (else)?
"Helium is a finite resource and is one of the few elements with escape velocity, meaning that once released into the atmosphere, it escapes into space."
So how does that work?