Magnus Walker, one of the most prolific Porsche fanatics in the world today, has recently given a TED talk at UCLA. His topic, "go with your gut feeling", is something of a mantra for the long-haired be-leathered ex-pat. His life has been a series of from-the-gut actions, and they've all seemed to work out in the end for him, even though he's had a number of down periods in his life.