I heard a story of an octogenarian who drove himself to the hospital for his eye cataracts operation. (Just let that sink in a bit.) On his surprisingly safe return home, his relatives queried the sense of his actions. He replied that what he lacked in sight, he made up for in driving experience.
I gave a talk recently about how I’ve been using data and analytics to guide my decisions in product management. I’ve edited the transcript a little and split it into bite-size parts for your entertainment. This bit is about expensive and risky assumptions (and why you should check them).