The Prediction Graveyard
Made with ❤️ by Aniruddh JangidLinkedIn
The Graveyard / Jean Macnamara

resurrected · Earned

Jean Macnamara advocated testing myxomatosis as a means of controlling Australia's rabbits in 1934 and continued pressing after failures.

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

Jean Macnamara
Medical scientist and advocate for rabbit-control research · Australia

Made: 1934Resolved: 1951
Original conceptual trajectory diagram illustrating No cause of death assigned
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 world at the time.

Macnamara treated myxomatosis as a testable biological-control possibility rather than a dated guarantee of rabbit eradication. Arid-country experiments had failed to spread the disease between rabbit warrens.

Myxomatosis to control rabbitsMyxomatosis blue plaque historyRatcliffe et al., Myxomatosis in Australia

What happened.

The 1950–51 Murray-region releases produced a widespread rabbit epidemic and major agricultural benefits. The claim of practical control was vindicated, although later resistance reduced effectiveness.

Myxomatosis to control rabbitsMyxomatosis blue plaque history

Predicted vs actual.

MetricPredictedActualVariance / caveat
Practical rabbit controlWorth testing as feasibleWidespread epidemic after 1950 releaseProposal vindicated in suitable conditions
Myxomatosis to control rabbitsMyxomatosis blue plaque history

The counter-signal.

CSIRO's institutional history recounts Francis Ratcliffe publicly describing myxomatosis as having failed in 1949. Bull and Mules had also issued a pessimistic assessment in 1944, making later success an actual recovery of a dismissed proposal.

Myxomatosis to control rabbitsMyxomatosis blue plaque historyRatcliffe et al., Myxomatosis in Australia

Verdict.

Reasoning: sound · Outcome: right

Resurrection is justified by the recorded failure declaration followed by practical success. This scores the possibility of control, not eradication, and the 1934 original advocacy text was not obtained.

1934 advocacy and 1949 declared failure are supported by CSIRO's institutional retrospective, not the retrieved original letter/newspaper. Do not display invented exact quotation or a precise forecast deadline. Contemporary 1952 paper metadata verified, subscription text unavailable.

Cause of death / explanatory lens.

No cause of death assigned

The lesson.

When repeated field failures occur, which untested environmental variable justifies another experiment?

Sources.

  1. Myxomatosis to control rabbitsinstitutional_history · 2011-03-21 · claim, failure declaration and outcome
  2. Myxomatosis blue plaque historygovernment_history · Date not established · 1950–51 outcome and mechanism
  3. Ratcliffe et al., Myxomatosis in Australiaprimary · 1952-07-05 · contemporary research publication identity

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