Stephen Petranek: 10 ways the world could end. TED | Talks | (video)

Stephen Petranek reveals the question that occupies scientists at the end of the day (and the beginning of happy hour): How might the world end? He lays out the challenges that face us in the drive to preserve the human race. Will we be wiped out by an asteroid? Eco-collapse? How about a particle accelerator gone wild?



TED | Talks | Stephen Petranek: 10 ways the world could end (video)