I've yet to see any SV billionaires admit any of their success involves luck. They seem incapable of recognizing that being in the right time and place is a huge component of any sort of success. Their egos are so wrapped up in their fortunes that their success must be their omniscience and not the fact they won the tech stock lottery.
There's luck involved, but if you listen or read some of Marc Andreesen's ideas there's no doubt he's highly intelligent and thoughtful. Ben Horowitz even said he was the smartest person he'd ever met in his book. While he was obviously working on the right thing at the right time, his fortune is not what I would consider
blind luck.
"... it's both massively luck and massively hard work. Sometimes it's more luck than hard work, and sometimes it's more hard work than luck. But every success requires both." -- Reid Hoffman
https://www.businessinsider.in/linkedin-founder-reid-hoffman...
"I'm a lucky guy. I mean, I certainly had a lot of near misses, but I was very lucky in terms of actually achieving success." -- Elon Musk, CNBC, May 2017
