[nerfhammer]

There are an infinite number of ways to succeed and an infinite number of ways to fail.

Think of the raven paradox (look it up on wikipedia). Finding something that isn't black and isn't a raven should be evidence that all ravens are black.

Why isn't it? Because there are an infinite number of things that aren't black, and a finite number of ravens. You could actually count all of the ravens in the world but you can't count all of the things in the world that aren't black.

Startups are not like this. Failures compare to successes at a rate of, say, 8 out of 10. Both classes are of the same order of magnitude. You need to examine both to find discriminating variables.