If you don’t read Edge regularly, perhaps you should. I find it is often a very nice source of thought. And what blew me away the first time I visited the site was The World Question Center. Here’s the idea: Garther a bunch of brilliant achievers and ask them a general, deceivingly simple question. Easy. And interesting.This years question is “What are you optimistic about? Why?” and can be found here.Food for thought indeed.