Without looking at the data, I'd bet that this skews the opposite of that way. In my observation of the world, 70 years olds don't often start up companies (tec

Without looking at the data, I'd bet that this skews the opposite of that way. In my observation of the world, 70 years olds don't often start up companies (tech or otherwise) - 18 year olds do. Given that, the median will probably be even higher than 45. I find it interesting that 45 was the average age when starting a top company, and since this was a 5 year mark survey they were all 50 at the time.