Why do people hate mathematics?

Alex Bellos discusses how the Incans used knots in string (Quipu) to record numbers.Check out Brilliant (get 20% off their premium service): https://brillian...

Featuring Professor Edward Frenkel, from the University of California, Berkeley. Author of Love & Math. http://amzn.to/1g6XP6j

With thanks to http://www.audible.com/numberphile