[JohnRM]

I find myself tapped into a deep well of faith and perpetual optimism, my friend.

[Loki]

Imminent extinction of the human race is a rather hysterical prediction. The future will be grim enough, no need for silly scenarios like human extinction.

[JohnRM]

So, basically optimism, fortitude, and perserverence = zombie. I guess I'm a zombie then. The rest of you can sit around and wait to die and go on trying your damndest to depress the living (crap) out everyone, but I for one intend to fight to change the world and survive. I won't apologize for believing that we can succeed in that.

[Newfie]

I see two kinds of misplaced optimism here:

1. Ain't gonna happen.

2. If it does happen it will be OK because humanity will survive.

What I personally worried about is my personal (and familial) extinction. Whether or not humanity makes it 10 generations is so far beyond my personal event horizon I can't deal with it. Especially if "success" is to say 50,000 manage to survive somewhere on Baffin Island. Sure humanity will not have gone extinct, but my family will have, and most especially ME (the most important person on Earth, don't cha know.!)

If you take a bit more concrete look at the three hypothesis there is not a lot to be happy about.