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.

  • 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.

  • 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.

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

216 claims, sorted by newest said. Choose a claim to read it in full.
VerdictKindSaidClaimTopic
Mostly true Factual Jun 1995 The Internet already existed when Andreessen began working at the university lab, and everybody there used it. Factual · Jun 1995 Technology
Unresolvable Factual Jun 1995 In the 3 to 4 years before 1995, PCs went from a hobbyist toy to use by roughly 40 to 50 million people. Factual · Jun 1995 Economics and markets
Mostly true Factual Jun 1995 The networks in question all use TCP/IP, which was not a government standard. Factual · Jun 1995 Technology
Mostly true Prediction Jun 1995 Catalogs of Internet resources will be supported by advertising in the future. Prediction · Jun 1995 Economics and markets
Own records only Factual Jun 1995 Netscape's global sales force consisted of six people in June 1995. Factual · Jun 1995 Their own work or organisation
Mostly true Factual Jun 1995 In June 1995, Andreessen said he thought Netscape had about six million Navigator users on the public network, not counting users behind firewalls. Factual · Jun 1995 Technology
Unresolvable Factual Jun 1995 One of the things Netscape tried to do was keep the concepts of client and server very separate. Factual · Jun 1995 Technology
Mixed Factual Jun 1995 Early in his time at the University of Illinois, Andreessen started working in a research lab at the university's physics research facility. Factual · Jun 1995 Their own work or organisation
Unresolvable Prediction Jun 1995 Some day it should be possible for everyone to publish on the Net as easily as using word processing. Prediction · Jun 1995 Technology
Own records only Factual Jun 1995 Andreessen spends half an hour every morning reading news online, in addition to newspapers. Factual · Jun 1995 Other
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
Unresolvable Prediction Jun 1995 Five or ten years is about the right timeframe to think about consumers shifting their commerce online, because that is about how long it takes for consumer habits to change on a broad scale. Prediction · 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
Back to the list

Factual Economics and markets

“So, by shipping product in December our revenues went from zero to a point where we're quite happy and pretty much able to fund the bulk of the company's work and development.”

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

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.

Resolved true The record shows it happened or was so.

Said for an organisation they lead or work for; it counts on both records.

What would count as true or false

Judge as of June 1995, about Netscape after shipping Navigator in December 1994. True: Netscape's financial records (e.g., the 1995 IPO prospectus/S-1) show revenue rising from essentially zero before December 1994 to levels by mid-1995 that covered most of its operating expenses (revenue near or above most of costs). Mostly true: revenue grew substantially and covered a large share but somewhat less than 'the bulk' of expenses. Mixed: revenue grew substantially but covered only around half of spending, with the company relying largely on venture or other financing. Mostly false: revenue was real but covered only a minor fraction of expenses, so 'fund the bulk' is a clear overstatement. False: no product shipped in December or revenue was negligible relative to spending.

Evidence

  1. Investors Get Caught Up in the Netscape : Wall Street: Software company makes an impressive debut, with more than 13.8 million shares changing hands during frenzied trading. Los Angeles Times · 10 August 1995
    “Earnings: $1.61-million loss on $11.9 million in revenue for second quarter of 1995.”
  2. Investors Get Caught Up in the Netscape : Wall Street: Software company makes an impressive debut, with more than 13.8 million shares changing hands during frenzied trading. Los Angeles Times · 10 August 1995
    “The debut is even more amazing considering that Netscape had modest revenue of $16.6 million in the first six months of this year and has never turned a profit.”
  3. Casestudy Netscape 1995 Scribd (user-uploaded case study re-resolved by Richard L.A. Meijs, M.B.A.)
    “At the end of 1994 net revenues were $696.000 and Netscape had a net loss of $ 8.470.000.”
  4. Casestudy Netscape 1995 Scribd (user-uploaded case study re-resolved by Richard L.A. Meijs, M.B.A.)
    “Initially shipped in December 1994, Netscape Navigator generated 49% and 65% of total revenues for the quarters ended March31, 1995, and June 30, 1995, respectively.”

Reasoning

E4 says Navigator first shipped in December 1994, and E3 gives Netscape's 1994 net revenue as $696,000 against a net loss of $8.47 million, a small revenue base before 1995. The LA Times (E1) reports Q2 1995 revenue of $11.9 million and a loss of $1.61 million. That puts spending at roughly $13.5 million, so revenue covered about 88% of it. E2 puts first-half 1995 revenue at $16.6 million, so Q1 was lower (about $4.7 million), but by mid-1995 revenue covered most operating costs, which meets the 'true' threshold in the criteria.

Cite this claim

Marc Andreessen, “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.” (said June 1995). Verdict: resolved true. Reliability API, claim c_de139bcda02e, method 0.1.0+c876030c. https://epistacklabs.com/claims/c_de139bcda02e

Claims without a verdict

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