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

“AI generates a lot of output (which fits many people’s informal notion of productivity), but it hasn’t yielded much in the way of RoI for many companies (per studies from MIT, McKinsey, Bain, and many others), and hasn’t materially changed GDP.”

Slop, productivity, and why the AI-fueled world is going nowhere mighty fast, paragraph 1.

Our reading:

AI produces lots of output but has not yielded much return on investment for many companies.

Assessment: Supported

What happened

Was it true for the period described?

Outcome: Supported

The evidence matches what they said.

Judged on a plain reading. They named no measure, so we used the reading a typical informed reader would take. It is spelled out under “How we judged it”.

Evidence up to . Checked .

Why

The evidence supports limited realized financial benefits for many companies during June 8, 2025–June 7, 2026 [e1, e2]. PwC surveyed CEOs from September 30 to November 10, 2025; 56% reported no significant financial benefit from AI to date [e1]. Deloitte surveyed executives at organizations with working AI implementations from August 15 to September 5, 2025; 15% of generative AI users and 10% of agentic AI users reported significant, measurable ROI [e2]. Dun & Bradstreet's May 4, 2026 release reported at least some measurable ROI for 60% of businesses, including broad or strong returns for 24%; these positive results remain compatible with limited benefits for many others [e4]. Support concerns meaningful financial payoff, without establishing a common audited net ROI ratio [e1, e2, e4].

Caveats

  • The surveys use different populations and self-reported measures; they do not establish comparable net returns after all costs [e1, e2, e4].
  • Not reporting significant ROI does not establish zero returns or eventual investment failure [e2].
  • Bain's April 2026 cost-savings figures do not directly measure investment returns [e3].
  • The evidence does not directly quantify aggregate AI output volume or establish the separate GDP assertion [e1–e4].

Evidence (4 items)

  • Supports the claim: PwC,

    56%

    Why it matters: PwC surveyed 4,454 CEOs between September 30 and November 10, 2025. The large group reporting no significant financial benefit supports the ordinary financial-payoff reading, although the sample is not restricted to mature AI deployments.

    Publisher
    PwC
    Kind of source
    Independent measurement
    About events on
    Published
  • Supports the claim: Deloitte,

    measurable ROI

    Why it matters: The survey covered 1,854 executives at organizations with working AI implementations, collected August 15–September 5, 2025. It reports significant current ROI for 10% of agentic AI users and 15% of generative AI users, supporting limited meaningful returns for many adopters without establishing zero returns.

    Publisher
    Deloitte
    Kind of source
    Independent measurement
    About events on
    Published
  • Context only: Insurance Journal / Bloomberg,

    reductions of 10% or less.

    Why it matters: Bain's April survey covered executives at 951 large companies and found savings often below expectations. Cost reductions are not an investment-return ratio, and savings below 10% can still be valuable, so this is contextual evidence rather than decisive proof of low ROI.

    Publisher
    Insurance Journal / Bloomberg
    Kind of source
    News report
    About events on
    Published
  • Context only: Dun & Bradstreet,

    measurable ROI

    Why it matters: This survey announcement reports early-2026 results from a quarterly study of 10,000 businesses across 32 countries. It counters a blanket claim that AI produces no returns, but positive returns for some businesses remain compatible with limited returns for many others.

    Publisher
    Dun & Bradstreet
    Kind of source
    Independent measurement
    About events on
    Published

How we judged it

Kind of claim
Observation
Deadline
None given. We don’t add one.

Conditions

  • for many companies (their words)

Where we had to interpret

  • Assess the supplied normalized proposition about enterprise returns. The GDP assertion is outside this claim.
  • Read 'many companies' as a substantial group of companies, without requiring all companies or a particular majority threshold.
  • Read 'much in the way of RoI' as meaningful realized financial benefit from AI investment. Marcus does not specify a formal return ratio or hurdle rate.
  • Treat the output language as a qualitative contrast between producing work and realizing financial benefits, without inventing a volume threshold.
  • For this ongoing observation, use the latest annual observation window ending at publication: June 8, 2025 through June 7, 2026. Survey results describe conditions when respondents were surveyed, not when reports were published.
  • This is a qualitative claim about the prevalence of limited returns across companies, not a financial amount or accounting metric for a particular company; metric_scope is null.

Right if: Credible enterprise studies within the target period identify a substantial group of AI users reporting little or no meaningful realized financial benefit, despite practical use of AI.

Wrong if: Comparable studies establish that limited realized financial benefits are confined to an exceptional or negligible group of AI-using companies. Evidence that some companies succeed does not alone contradict 'many companies'.

We wrote this test after the outcome was known.

We found 15 claims in this post. See them all.

Full record

Source and dates

Marcus on AI, Slop, productivity, and why the AI-fueled world is going nowhere mighty fast, paragraph 1.

Said
We read the source
live page, full text, public
Evidence up to
Checked

We read this wording on 2026-10-28. The post may have been edited after 2026-06-07.

Where it was said (1)

Said once in the posts we read.

  • : Marcus on AI, Slop, productivity, and why the AI-fueled world is going nowhere mighty fast

    AI generates a lot of output (which fits many people’s informal notion of productivity), but it hasn’t yielded much in the way of RoI for many companies (per studies from MIT, McKinsey, Bain, and many others), and hasn’t materially changed GDP.

    Published
    2026-06-07
    We read it
    , live page
    Access
    full text, public

History

Versions

  • Current: Supported. Evidence up to 2026-10-28.

What happened to this record

  1. PublishedBy us

    Published after both AI reviews and the final check passed.