The Prediction Graveyard
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Unmarked Graves / Bill Gates

unmarked · Unscored / disputed

Attributed claim: 640 kilobytes of memory would be enough for anybody indefinitely.

Source-backed summary; not presented as a verbatim quotation.

Bill Gates
Microsoft co-founder · United States

Made: Not establishedExamined: See evidence
Original conceptual trajectory diagram illustrating Provenance unresolved
Reasoning and outcomes. Original illustration for The Prediction Graveyard. Aniruddh Jangid, 2026. Original digital diagram. CC BY 4.0. Changes: none. This is a conceptual diagram, not an archival image.

The popular version and its context.

The familiar sentence is often assigned to the IBM PC’s 1981 launch. Published variants appear later without a direct interview or reliable original citation.

Quote origin: 640K ought to be enough

What the archive supports.

Gates denied making the sentence, while a 1985 editorial attributed a related sentiment to him. The evidence remains mixed rather than proving either fabrication or authenticity.

Quote origin: 640K ought to be enough
Popular attribution

Attributed claim: 640 kilobytes of memory would be enough for anybody indefinitely.

Source check

disputed_attribution

Current finding

Disputed wording and date; no accuracy score.

Evidence against the attribution.

His recorded 1989 discussion described expecting a ten-year increase in headroom and recognising that it lasted less. That narrower recollection does not authenticate the permanent-limit quotation.

Quote origin: 640K ought to be enough

Verdict.

Reasoning: Not assessed · Outcome: Not assessed

Disputed wording and date; no accuracy score.

No authenticated original prediction established. Unknown dates are null; absence of evidence is not treated as proof that the person never said it.

The lesson.

Does a design expectation for one product become a claim about all future computing?

Sources.

  1. Quote origin: 640K ought to be enoughquote_investigation · 2011-09-08 · earliest variants, denial and recorded 1989 context

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