re: What Would Be The Most Interesting Way Humanity Ends?

It is known how the world will end.

The fourth dimension contains all moments of time occurring and re-occurring endlessly and simultaneously. All moments, past, present and future, always have existed, always will exist. There is no beginning, no middle, no end. Because all moments of time have already happened, we are powerless to change anything. Only on Earth is there talk of free will, as humans mistakenly think of time as a linear progression.

We on the planet Tralfamadore know how the world ends. It has always ended the same way. The world will end when a Tralfamadorean fighter pilot presses the wrong button.

(Now let's see who gets this one...)