> In reliability planning, 2 is 1 and 1 is none. A single founder is a SPoF. They get cancer, get an unsupportive SO, get a needy family member, lose a rich unc

> In reliability planning, 2 is 1 and 1 is none. A single founder is a SPoF. They get cancer, get an unsupportive SO, get a needy family member, lose a rich uncle, etc., they kill the company. Having 2+ founders guards against these likelihoods (over the course of the company). Not really true at all, as has been pointed out by other posters. In the book "masters of doom" they relate that even though Id software had 4 founders when it came time for them to get key man insurance the only person they got it on was John Carmack. I'd think that most companies are like this. There may be multiple co-founders but there is usually one signifcant one, who if they quit, would sink the company very quickly.