What would you do if you woke up one day to find you were the last person alive?

[Brian37]

In all seriousness, I likely blow my brains out. I wouldn't want to live in a world without other people. 

Boru

Mass extinctions don't happen like that. Conditions that lead to mass extinctions don't happen suddenly but are a collection of events.

I would say if 45 gets stupid and fucks up our planet with a nuclear war, I hope I am directly under that nuke so I get vaporized and don't feel it. 

I wouldn't want to live in the aftermath of a global nuclear war regardless of how many humans are left over. Ground wars alone, from what I see in human history are horrible enough by themselves.