please don't strawman. I never said rags-to-riches. I said upper middle class (25th percentile). Elite universities take great students from upper middle class, and many of those billionaires did not graduate from elite universities.

Eh...you probably can't get into an elite university without already being elite unless you're a recruited athlete or have another "hook". Normal, middle class kids don't win ISEF or math olympiads unless their parents are professors or something.

Many kids do. Just because you didn't doesn't mean others don't.