“Was that 4 Billion years, or 4 Million years?”
Either way I don’t think you and me need to worry about it!
Right now, “We” should be considering avoiding extinction
by figuring out how to live and thrive in Space and on other
Planets.
We can then work on figuring out how to get to other
Star systems.
We have plenty of time to ponder escape to another Galaxy...
;-)
Easy
I was just quoting Professor Stephen Jay Gould, when a student asked him that question from the back of the room.
And when Mars goes—we're already toast. (At least, whatever's left).