The Prediction Graveyard
Made with ❤️ by Aniruddh JangidLinkedIn
The Graveyard / Gregor Mendel

resolved · Earned

For the pea traits studied, hybrid offspring would follow discrete, calculable inheritance ratios rather than permanently blend parental traits.

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

Gregor Mendel
Augustinian friar and experimental botanist · Austrian Empire (now Czechia)

Made: 1866Resolved: 1900
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.

Mendel tracked clearly distinguishable traits through controlled crosses. His probability-based rules forecast the composition of later generations.

Experiments in Plant Hybridization1900: Rediscovery of Mendel’s WorkOn the Origin of Species, first edition

What happened.

De Vries, Correns and Tschermak independently reached related inheritance laws in 1900 and found Mendel’s publication. The rediscovery supplied further experimental confirmation and wider recognition.

1900: Rediscovery of Mendel’s Work

Predicted vs actual.

MetricPredictedActualVariance / caveat
Simple dominant/recessive F2 ratioApproximately 3:1Confirmed for suitable single-locus traitsAgreement within sampling variation
1900: Rediscovery of Mendel’s Work

The counter-signal.

Contemporary hybrid research documented sterility, variable offspring and complicated inheritance across species. Darwin’s 1859 discussion of hybridism shows why a simple pea rule could not safely be generalized to every cross.

On the Origin of Species, first edition

Verdict.

Reasoning: sound · Outcome: right

The prediction is right within its stated experimental scope. The card does not claim all characteristics follow a simple 3:1 ratio or that Mendel predicted every mechanism of modern genetics.

Primary translated paper verified at University of Hamburg; publication year 1866 used, rather than 1865 presentation year. Recognition lag alone does not warrant an 'early' verdict.

Cause of death / explanatory lens.

No cause of death assigned

The lesson.

Is the result being generalized beyond the organisms and traits actually tested?

Sources.

  1. Experiments in Plant Hybridizationprimary · 1866 · claim
  2. 1900: Rediscovery of Mendel’s Workinstitutional · Date not established · outcome
  3. On the Origin of Species, first editionprimary · 1859 · counter_signal

Related predictions.