Tarsonis Survivors wrote:I more meant He in terms of its periodical designation.
There is more H than He up there right now, and there always will be, but you are of course right than the accumulation of He in the nucleus of our local star will pose a problem for the continued existence of the Earth.
Long story short, in a few billion years the Earth will become uninhabitable due to the Sun transitioning into its red giant phase and evaporating the oceans away. If Humanity is to survive, we're going to have to move somewhere else.