Is it really that hard to understand success? Right person at the right place at the right time. Seriously, it's a very old idea.
I think the whole point is to get a better idea of what it means to be "the right person". What kind of traits can we develop to make ourselves more likely to be "the right person"? Nobody is sitting on the couch all day crossing their fingers hoping that they're the right person to create a tech startup, for example.