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Marc Andreessen

Marc Andreessen is an American entrepreneur and investor who co-created the Mosaic web browser and co-founded Netscape and the venture capital firm Andreessen Horowitz.

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Marc Andreessen is an American entrepreneur and venture capitalist. As a student at the University of Illinois, he worked on the Mosaic graphical web browser at the National Center for Supercomputing Applications, and in 1994 he co-founded Netscape Communications with Jim Clark.

In 2009 he co-founded the venture capital firm Andreessen Horowitz, also known as a16z, with Ben Horowitz.

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Venture capitalist Marc Andreessen once called the internet's lack of built-in money and digital cash the web's "original sin."

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