Marc Andreessen
American software engineer turned venture capitalist. Co-author of NCSA Mosaic (the first widely-used graphical web browser) and co-founder of Netscape; co-founder of the venture firm Andreessen Horowitz (a16z). Before becoming primarily a VC, he wrote influentially as “Pmarca” on his eponymous blog (~2007) — a body of essays that rippled widely through the tech and startup community.
Why he matters here
Referenced in Naval Ravikant - How to Get Rich Without Luck (video) as the popularizer of the Four kinds of luck taxonomy. The original framework is from neurologist James H. Austin’s Chase, Chance, and Creativity: The Lucky Art of Novelty (1978); Andreessen’s “Pmarca” post pulled it into the tech / founder canon, where Naval Ravikant and many others picked it up.