As a former scientist, I’ve been trained to rely on objective facts. For years, when I was attempting to persuade someone, I would back my arguments with hard, cold, irrefutable data and expect immediate results. Drowning the other person with facts, I assumed, was the best way to prove that climate change is real, the war on drugs has failed, or the current business strategy adopted by your risk-averse boss with zero imagination isn’t working. But I’ve discovered a significant problem with this approach. It doesn’t work.