Stephen Petranek: 10 ways the world could end
posted by my15minutes 1 decade 6 years 10 months ago • 1,819 viewsTED talks
Created: 1 decade 7 years 2 months 2 weeks ago
Updated: 7 years 4 months 3 weeks ago
Views: 18,573
Updated: 7 years 4 months 3 weeks ago
Views: 18,573
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