To me young is < 60. Also "most successful startups". OK let's do a quality of life scale, 0 for destitute, 10 for billionaire. Millionaire would be 9.8 on the

To me young is < 60. Also "most successful startups". OK let's do a quality of life scale, 0 for destitute, 10 for billionaire. Millionaire would be 9.8 on the scale. Hell maybe the other way around, being a millionaire is better than being a billionaire (because of the problem of fame). A lot of people reach that by doing mundane things like starting a tyre fitting shop, or janitorial business, or flipping houses, or very niche software businesses. Depends what we mean by success. There is the 'make investors rich' kind of success that an investor is looking at encouraging people to do.