Lots of people do and lots of people don't. Saying someone who can't go with less then 8 hours sleep shouldn't start a business is like saying someone who can't

Lots of people do and lots of people don't. Saying someone who can't go with less then 8 hours sleep shouldn't start a business is like saying someone who can't survive on one meal a day shouldn't, or people with one leg. I do quite a bit of physical activity. Anything less than 7 hours would soon burn me into the ground.