Source
Sharp Tech with Ben Thompson — (Preview) The App Store in the Shadow of AI, Offensive and Defensive Cybersecurity, Q&A on Financial Planning, AI Writing, American Sports (August 21, 2026) ·
at 14:20 ▸
When this applies
when judging whether a platform's rule-setting toward dependents/competitors is fair, regardless of how restrictive the rule itself is
The takeaway
A platform rule is legitimate if applied uniformly and disclosed upfront to all parties, even if restrictive; it becomes a violation when applied differently to the platform's own products versus competitors', or changed retroactively to disadvantage others.
Why it works
Antitrust law (per Thompson's reading) punishes selectively applying or retroactively changing rules to favor yourself over competitors in the same space, not merely having a restrictive rule — because consistency preserves the ability of others to plan and compete under known terms.
Where it stops holding
This stops working when a facially neutral rule is designed from inception to structurally disadvantage one class of competitor even though applied 'equally' on paper.
Detail
rule: Judge platform conduct by consistency and timing of rule application, not just restrictiveness.
threshold: Same rule, same wording, applied to the platform's own and competitors' offerings from the start = defensible; different wording/rules for self vs. others, or changing rules after the fact to favor yourself = violation.
rationale: "In US antitrust law, if you're honest all along, you're gonna do what you want... If you change the rules after the fact, that's a big problem."
In their words
to what's all of them. Competing in the exact same space. Right? Right.