Pundit ClaimsAI claims by Gary Marcus and Ed Zitron, with the evidence

“GenAI is messing with science.”

The Year of the Big-Balled Rat, paragraph 1. The full statement is at the source.

Our reading, the sentence that was checked:

Generative AI is currently damaging science.

Assessment: Supported Evidence as of

Where and when Gary Marcus wrote it

Marcus on AI, The Year of the Big-Balled Rat, paragraph 1.

Said
Source observed
live page, full text, public
Evidence as of
the cutoff for this assessment
Assessment recorded
assessment marcus-the-year-of-the-big-balled-rat-f16310-a1

We recorded 8 claims from this post. See every claim from this post.

The wording above is the version this site observed on 2026-10-29. The source may have been edited after 2024-03-14. This page does not claim the wording was captured then.

What the claim commits to

Kind
Observation
Deadline, as the speaker wrote it
None stated. This site does not add one.
Deadline state when assessed
No horizon
Deadline state on 2026-10-29
No horizon (the release’s reference date)

From the speaker

  • GenAI is messing with science.
  • Two clearest examples so far this year

Our interpretation

  • The plain reading is that generative AI had introduced defective material into published scientific work. It does not require showing that all AI use harms science or that its overall costs exceed its benefits.
  • The surrounding words 'so far this year' establish January 1 through March 14, 2024 as the observation period.
  • Scientifically incorrect AI-generated illustrations that reached publication count as damage to the scientific record.

Counts as supported if: Documented cases within the target period show that generative-AI material entered published scientific work and introduced scientific errors or materially compromised its reliability.

Counts as contradicted if: Reliable examination establishes that the alleged defects were absent, were not generated by AI, or did not enter published scientific work. Failure to find additional examples alone would not contradict the claim.

Retrospective: these criteria were written after the outcome was public.

Current assessment

Was it true for the period described?

Outcome: Supported

The dated evidence matches what the claim committed to, under the criteria frozen before grading.

Scored on a plain reading. The speaker named no measure for this claim, so it was judged on the reading an informed reader would take, stated below under our interpretation. Both reviews had to find that reading fair.

Evidence as of
Deadline state when assessed
No horizon
Assessment recorded
Policy version
2026-10-28.7

Rationale

The authors acknowledged using Midjourney for the published illustrations. A contemporaneous independent examination identified concrete anatomical and scientific errors. This supports the ordinary, contextual reading that generative AI was introducing defective material into scientific publication by March 14, 2024. It does not establish a science-wide net loss.

Limitations

  • The conclusion concerns an identifiable publication failure, not the frequency or aggregate consequences of such failures.
  • The independent examination is an expert's public analysis, not a controlled study.
  • Author and editorial decisions also contributed to the defective material reaching publication.

Evidence (2 items)

  • Supports the claim: Frontiers in Cell and Developmental Biology; Xinyu Guo, Liang Dong and Dingjun Hao,

    generated by Midjourney

    Why it matters here: The original paper expressly identifies Midjourney as the source of its images. It is evidence of AI provenance, not evidence that the paper's scientific assertions are reliable.

    Publisher
    Frontiers in Cell and Developmental Biology; Xinyu Guo, Liang Dong and Dingjun Hao
    Kind of source
    Peer-reviewed paper
    Describes events of
    Public from
  • Supports the claim: Science Integrity Digest; Elisabeth Bik,

    anatomically and scientifically incorrect.

    Why it matters here: Bik directly examines the published figures and identifies anatomical errors, invented labels and an invalid signaling diagram. Together with the authors' disclosure, this documents defective generative-AI material in scientific publication.

    Publisher
    Science Integrity Digest; Elisabeth Bik
    Kind of source
    Independent measurement
    Describes events of
    Public from

Where it was said (1)

Said once in the sources this register covers.

  • : Marcus on AI, The Year of the Big-Balled Rat

    GenAI is messing with science.

    Published
    2024-03-14
    Source observed
    , live page
    Access
    full text, public

History

Assessment versions

Recorded events

  1. Assessment publishedBy this site

    First assessment published after both reviews and the final-text check passed.

    About assessment marcus-the-year-of-the-big-balled-rat-f16310-a1.