[2ndDivisionVet]

Who says we’ll still inhabit Earth almost 4 billion years from now?

[MtnClimber]

I think that the sun will go super nova in about 4 billion years, so earth may not even be here to go through the collision.

[stormhill]

Who says we'll still inhabit Earth almost 4 billion years from now?

Oh, wait! Billion. For a moment there I thought I had read MILLION. Had me worried there for a minute.

[Ken H]

In the year 2525252525...