July 6, 2011
There have been so many excellent videos, I don't think I can choose a single one as my favourite. The one about the native Mexican running tribe that regularly run 3, 4 and 500 kilometer distances springs to mind as I write this though, so I'll go with that.
I moved to Toronto a little under 4 years ago from Dublin, Ireland. I first discovered TED talks about 6 months ago through a podcast service called MediaFly.