Is self-preservation egotistic? Probably. An asteroid similar to the dinosaur extinction event could hit us at anytime, with a few hours notice. You'd think the

Is self-preservation egotistic? Probably. An asteroid similar to the dinosaur extinction event could hit us at anytime, with a few hours notice. You'd think the human race would learn from the dinosaurs? Imagine another asteroid hits Earth, humanity becomes extinct, and a new sentient species evolves after 200 million years. This species will dig up human and dinosaur bones. Reminds me of: "Fool me once, shame on you; fool me twice, shame on me."