I added a video to a @YouTube playlist http://bit.ly/1cr0Noo 📈 ❶ Top 10 Smartest People: n.1 - William James Sidis - IQ 250-300

I added a video to a @YouTube playlist http://bit.ly/1cr0Noo 📈 ❶ Top 10 Smartest People: n.1 - William James Sidis - IQ 250-300

— EndevoryX (@EndevoryX) May 7, 2015

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http://twitter.com/EndevoryX/status/596333751908638721