There is no absolute knowledge. And those who claim it, whether they are scientists or dogmatists, open the door to tragedy. All information is imperfect. We have to treat it with humility - Jacob Bronowski, The Ascent of Man
is a London-based writer and editor who gave up blogging several years ago because he wanted to get out more. This year he might be getting out too much because he's doing a '2012 miles in 2012' Olympic-year challenge for various charities and in memory of his dad. He was persuaded, belatedly, to blog about it.