The Edge Foundation has this event called the World Question Center where every year, they ask some of the world's brightest thinkers one Big Question. Last year it was What have you changed your mind about and why?

I loved pouring over the answers, mostly because many of them described a shift in the writer's thinking, rather than just changing their opinion on a particular fact.

However thinking about what my answer would be, I couldn't really come up with something I felt strongly about. That was until recently, when I saw a very poignant speech on racism. The crystallization of 'race' as an artificial descriptor of culture finally put concrete words onto something that had been in the back of my head for years now. Here goes.

What did I change my mind about and why?