^billions of years into the future though, and by then our sun will be running out of fuel and will expand, and if we are still alive we will be incredibly advanced, beyond advanced.So we would be able to stop the big smash up.
Are you sure the term theory is a correct description for them?^well there is two theories to that.
1.) that the two galaxies will not have total chaos and will simply combine/merge
or 2.) Each solar system will start pulling each other towards each other (gravitational pull) and then presumably destroy each other or smash each other up a bit and one will prevail.
How do you pertain that to even be possible?^that is assuming we haven't blown up the entire universe by then. Which, given our track record just on this planet recently, looks pretty likely.
I mean seriously, my money is on this place not lasting another thousand years, let alone millions of years...