Stephen Petranek: 10 ways the world could end
posted by my15minutes 1 decade 6 years 4 months 2 weeks ago • 1,819 viewsTED talks
Created: 1 decade 6 years 9 months ago
Updated: 6 years 11 months 1 week ago
Views: 18,547
Updated: 6 years 11 months 1 week ago
Views: 18,547
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