Not to detract from Pieter (he actually says this often) but his success is strongly tied to his persona and the brand and community he's built around it, starting from his "12 Startups in 12 Months" stint.

Without marketing/outreach, your hit rate will be much closer to 0%.

He even had an audience BEFORE he did the 12 startups in 12 months things: he had a succesful youtube electronic music channel

Which doesn't make its success less impressive though but people might want to know that

Nice, I didn't know that!