ClaimsPeople

Marc Andreessen

Marc Andreessen co-created the Mosaic browser, cofounded Netscape, and is cofounder and general partner of the venture capital firm Andreessen Horowitz.

1,009 claims collected, 216 researched, 105 resolved. Report of 4 November 2026, method 0.1.0+c876030c.

Scores by kind of claim

Each kind of claim is scored on its own, out of 100: the share that held up, with the range it likely falls in. Fewer resolved claims give a wider range.

  • Factual claims

    Statements about the present or the past, checked against the record: did they hold up?

    67 61 73

    High confidence, 94 factual claims resolved. From 11 documents, 1995 to 2026; 19 documents sampled from 30 candidates found.

    Not scored: 44 unresolvable, 17 checkable only against their own records.

    See the factual claims

  • Predictions

    Statements about events outside the person's control, checked once they fell due: did they come true?

    60 44 76

    Low confidence, 11 predictions resolved. From 6 documents, 1995 to 2025; 19 documents sampled from 30 candidates found.

    Not scored: 41 unresolvable, 1 checkable only against their own records. 4 more fall due later.

    Does not yet allow for how likely each prediction was when made.

    See the predictions

  • Promises

    Commitments to the person's or organisation's own future action, with something to deliver: was it delivered?

    Insufficient record: 0 promises resolved, 5 needed for a score.

    Not scored: 3 unresolvable.

    See the promises

All types combined: 66 (likely 61 to 72, high confidence), from 105 claims: 94 factual claims, 11 predictions. It mixes kinds of claim in different proportions for different people, so compare people kind by kind.

Marc Andreessen's claims

105 claims · page 2 of 2

105 claims, sorted by newest said. Choose a claim to read it in full.
VerdictKindSaidClaimTopic
Mostly true Factual Jun 1995 The Mosaic team designed Mosaic with end users as its target. Factual · Jun 1995 Technology
Mostly true Factual Jun 1995 Internet access was never free; it always cost money. Factual · Jun 1995 Economics and markets
Resolved true Factual Jun 1995 After the company shipped product in December, its revenues went from zero to a level where it was pretty much able to fund the bulk of its work and development. Factual · Jun 1995 Economics and markets
Resolved true Factual Jun 1995 Yahoo was started by Ph.D. students at Stanford. Factual · Jun 1995 Technology
Mostly false Factual Jun 1995 Leaving aside access into the home, general bandwidth is improving in price-performance, or dropping in price, faster than microprocessors, by a factor of about four each year. Factual · Jun 1995 Economics and markets
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Marc Andreessen

Open its page

Factual Technology

“The guys who started it are Ph.D. students at Stanford.”

Marc Andreessen, Netscape founder and COO June 1995 Smithsonian Oral and Video Histories: Marc Andreessen (Smithsonian)

Yahoo was started by Ph.D. students at Stanford.

Resolved true The record shows it happened or was so.

What would count as true or false

Judged as of June 1995. True: records show Yahoo's founders (Jerry Yang and David Filo) were Stanford Ph.D. students (electrical engineering) when they started it in 1994. Mostly true: they were Stanford graduate students and Ph.D. candidates, with a minor detail off (for example they had just left the programme by 1995). Mostly false: only one founder was a Stanford Ph.D. student, or they were Stanford students of another kind. False: the founders were not Stanford Ph.D. students.

Evidence

  1. Marissa Mayer named CEO of Yahoo! Stanford University School of Engineering · 16 July 2012
    “Founders David Filo and Jerry Yang were doctoral candidates in electrical engineering in February 1994 when they started their guide in a campus trailer as a way to keep track of their personal interests on the Internet.”
  2. On the 20th Anniversary – The History of Yahoo’s Founding Internet History Podcast · March 2015
    “In early 1994, Jerry Yang and David Filo were PhD students in electrical engineering at Stanford.”

Reasoning

Stanford Engineering's news page [E1] says David Filo and Jerry Yang were doctoral candidates in electrical engineering when they started their guide in February 1994. The Internet History Podcast retrospective [E2] also says both were Stanford PhD students in electrical engineering in early 1994. The two sources agree, and together they meet the criteria's definition of true.

Cite this claim

Marc Andreessen, “Yahoo was started by Ph.D. students at Stanford.” (said June 1995). Verdict: resolved true. Reliability API, claim c_e5a68210f3ef, method 0.1.0+c876030c. https://epistacklabs.com/claims/c_e5a68210f3ef

Claims without a verdict

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