[Right Wing Professor]

I read the link AndrewC posted.They're claiming helium diffuses fast in zircons, and therefore the fact there's still helium in zircons means the earth is young. But the problem is that helium does not diffuse fast in zircons; according to the paper I cited, the activation energy for diffusion is 44 kcal/mol. On average, the thermal energy available to a helium atom at room temperature is 0.6 kcal/mol. Below 190C, helium does not diffuse significantly at all.

[DittoJed2]

What if their paper proves the other paper wrong. You just assumed it does not.