4 ms·
Allan Savory TED talk http://www.youtube.com/watch?v=vpTHi7O66pI http://www.youtube.com/watch?v=vpTHi7O66pI on this topic
by elementai 11y ago
Allan Savory TED talk http://www.youtube.com/watch?v=vpTHi7O66pI http://www.youtube.com/watch?v=vpTHi7O66pI on this topic