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Marc Andreessen - Wikipedia

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Wikipedia·en.wikipedia.org/wiki/Marc_Andreessen

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3/5
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Good quality. Reputable source with community review or editorial standards, but less rigorous than peer-reviewed venues.

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Relevant to AI safety discussions as Andreessen represents a prominent techno-accelerationist perspective that actively opposes AI safety regulation; his influence in Silicon Valley and VC funding makes his positions consequential for AI governance debates.

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Importance: 30/100wiki pagereference

Summary

Wikipedia biography of Marc Andreessen, co-creator of the Mosaic web browser, co-founder of Netscape, and general partner at venture capital firm Andreessen Horowitz (a16z). Andreessen is a prominent technology investor and commentator who has published influential views on AI development, most notably his 'Techno-Optimist Manifesto' advocating for accelerationist AI development with skepticism toward safety regulation.

Key Points

  • •Co-created Mosaic (1993) and co-founded Netscape, making him a foundational figure in the commercialization of the internet.
  • •Co-founded Andreessen Horowitz (a16z), one of Silicon Valley's most influential VC firms, which has made major AI investments.
  • •Published 'The Techno-Optimist Manifesto' (2023), a high-profile counter-argument to AI safety concerns and regulatory intervention.
  • •Has been a vocal critic of AI safety frameworks, effective altruism, and what he terms 'AI doomers.'
  • •His views and investments make him a significant figure in debates around AI governance and the pace of AI deployment.

Cited by 1 page

PageTypeQuality
Marc AndreessenPerson58.0

4 FactBase facts citing this source

EntityPropertyValueAs Of
Marc AndreessenNotable ForCo-created Mosaic web browser (1993); founded Netscape (sold to AOL for $4.2B); co-founded Andreessen Horowitz managing $90B+ in venture capital; techno-optimist AI advocate opposing safety regulationMar 2026
Marc AndreessenBirth Year1971—
Marc AndreessenEducationB.S. in Computer Science, University of Illinois at Urbana-Champaign—
Marc Andreessenpolitical-positioningPublicly supported Republican candidates and endorsed Trump circa 2023-2024. This positioning, combined with the Techno-Optimist Manifesto, increased tensions between a16z and EA/AI safety communities.Jan 2024

Cached Content Preview

HTTP 200Fetched Mar 20, 202698 KB
# Marc Andreessen

Marc Andreessen

American businessman (born 1971)

| Marc Andreessen |
| --- |
| [![](https://upload.wikimedia.org/wikipedia/commons/thumb/5/57/Marc_Andreessen-9_%28cropped%29.jpg/500px-Marc_Andreessen-9_%28cropped%29.jpg)](https://en.wikipedia.org/wiki/File:Marc_Andreessen-9_(cropped).jpg)<br>Andreessen in 2013 |
| Born | Marc Lowell Andreessen<br> (1971-07-09) July 9, 1971 (age54)<br>[Cedar Falls, Iowa](https://en.wikipedia.org/wiki/Cedar_Falls,_Iowa "Cedar Falls, Iowa"), U.S. |
| Education | [University of Illinois Urbana-Champaign](https://en.wikipedia.org/wiki/University_of_Illinois_Urbana-Champaign "University of Illinois Urbana-Champaign") ( [BS](https://en.wikipedia.org/wiki/Bachelor_of_Science "Bachelor of Science")) |
| Occupations | - [Investor](https://en.wikipedia.org/wiki/Investor "Investor")<br>- [entrepreneur](https://en.wikipedia.org/wiki/Entrepreneur "Entrepreneur")<br>- [software engineer](https://en.wikipedia.org/wiki/Software_engineer "Software engineer") |
| Knownfor | - [Mosaic](https://en.wikipedia.org/wiki/Mosaic_(web_browser) "Mosaic (web browser)")<br>- [Netscape](https://en.wikipedia.org/wiki/Netscape "Netscape")<br>- [Opsware](https://en.wikipedia.org/wiki/Opsware "Opsware")<br>- [Andreessen Horowitz](https://en.wikipedia.org/wiki/Andreessen_Horowitz "Andreessen Horowitz") |
| Spouse | [Laura Arrillaga](https://en.wikipedia.org/wiki/Laura_Arrillaga-Andreessen "Laura Arrillaga-Andreessen")<br>​<br>(m.2006)​ |
| Children | John[\[1\]](https://en.wikipedia.org/wiki/Marc_Andreessen#cite_note-Friend2015-1) |
| Relatives | [John Arrillaga](https://en.wikipedia.org/wiki/John_Arrillaga "John Arrillaga") (father-in-law) |
| Website | [a16z.com/author/marc-andreessen](https://a16z.com/author/marc-andreessen) |

**Marc Lowell Andreessen** ([/ænˈdriːsən/](https://en.wikipedia.org/wiki/Help:IPA/English "Help:IPA/English") [_an-DREE-sən_](https://en.wikipedia.org/wiki/Help:Pronunciation_respelling_key "Help:Pronunciation respelling key"); born July 9, 1971) is an American businessman, venture capitalist, and former software engineer. He is the co-author of [Mosaic](https://en.wikipedia.org/wiki/Mosaic_(web_browser) "Mosaic (web browser)"), the first [web browser](https://en.wikipedia.org/wiki/Web_browser "Web browser") to [display inline images](https://en.wikipedia.org/wiki/History_of_the_web_browser#NCSA_Mosaic "History of the web browser"); co-founder of [Netscape](https://en.wikipedia.org/wiki/Netscape "Netscape"); and co-founder and general partner of [Silicon Valley](https://en.wikipedia.org/wiki/Silicon_Valley "Silicon Valley") venture capital firm [Andreessen Horowitz](https://en.wikipedia.org/wiki/Andreessen_Horowitz "Andreessen Horowitz"). He co-founded and later sold the software company [Opsware](https://en.wikipedia.org/wiki/Opsware "Opsware") to [Hewlett-Packard](https://en.wikipedia.org/wiki/Hewlett-Packard "Hewlett-Packard"); he also co-founded [Ning](https://en.wikipedia.org/wiki/Ning_(website) "

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