Oliver Sacks On What We Can Learn About The Mind From Hallucinations

This a great talk, Oliver Sacks is brilliant, and the best part is that he talks about Charles Bonnett syndrome.

A subject which has always fascinated me, and seems like the best of the side effects of vision-loss and aging.

I met a lady a few weeks ago who has it and she say's its a blast, once you realize that your not going crazy.