For what it's worth, while I believe it's inevitable that we as a species will face a true catastrophic occurrence, be it by our own hand or a quirk of fate, there are so many factors involved in a potential scenario and in our own remarkably varied and adaptable species that I think it's possible for us to avoid eradication. In fact I think it would be very difficult to eradicate the entire human species, we're like germs or bugs. Someone somewhere is going to slip into a crack.

And lest that sound negative, I believe the world will change around us, and there will be tragic waste and injustice, but as long as humans exist, human ingenuity, expression, and development will too, and it will be influenced by what we plebes leave behind in the form of art, literature, and history.