I suffer, on occasion, from depression and anxiety. When I'm having an episode, my brain doesn't function.

I don't mean that I can't solve problems. I mean I can't hold a conversation.

I wonder if the reason so many people fail is because we've essentially put them in an artificial situation that shuts their brain down.

(I have also been dumbfounded by the inability of recent CS graduates to do FizzBizz... I feel like it's not certain our candidates are frequently flawed. Maybe it's our environment.)