Why? What special quality does Mark have?<p>He wasn&#x27;t some genius programmer. He created a glorified forum (and in PHP).<p>He wasn&#x27;t some genius businessman (evident from his early interviews). He created something at the right time, that got momentum because of that, and that attracted the right people to help make it a success business wise.<p>Would he have gotten somewhere else if it wasn&#x27;t for that? Maybe, maybe not.<p>I don&#x27;t see anything particularly convincing that he wouldn&#x27;t have regressed to the mean.