Receipt

    Filed October 7, 2026

    Called it.

    The short version

    Eric Seufert predicted on July 1, 2020: “I believe that Apple's upcoming iOS privacy changes will significantly harm Facebook's revenue, causing a roughly 7% revenue impairment in Q2 2021 in the base case scenario.” Verdict: Called it. Meta itself estimated that Apple's App Tracking Transparency (ATT) changes cost it approximately $10 billion in 2022, which was roughly 8% of its…

    Prediction by

    Eric Seufert

    On July 1, 2020

    “I believe that Apple's upcoming iOS privacy changes will significantly harm Facebook's revenue, causing a roughly 7% revenue impairment in Q2 2021 in the base case scenario.”

    Follow-up

    Meta itself estimated that Apple's App Tracking Transparency (ATT) changes cost it approximately $10 billion in 2022, which was roughly 8% of its ad revenue, closely validating Seufert's base case prediction.

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