Stephen Petranek:
Cuenta regresiva de Stephen Petranek al Armagedón.

TED2002 · 29:42 · Filmed Feb 2002
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¿Cómo terminará el mundo? Stephen Petranek nos muestra los retos que enfrentamos en el esfuerzo por preservar la raza humana. ¿Seremos eliminados por un asteroide? ¿Un colapso ecológico? ¿Qué tal un acelerador de partículas fuera de control?

Technology forecaster
Stephen Petranek untangles emerging technologies to predict which will become fixtures of our future lives — and which could potentially save them. Full bio
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