FTC v. Meta: Mark Zuckerberg says he considers TikTok the “highest competitive threat” for Facebook and Instagram in the past few years
Meta CEO Mark Zuckerberg emphasized Wednesday that his social media company faces stiff competition from TikTok, as Meta seeks to fend off accusations …
The HillJulia Shapero
Context & Ripple Effects
The testimony lands as the FTC defines the relevant market narrowly around “personal social networking,” a position laid out in the agency’s market-definition argument. Meta has been building its defense around the proposition that attention and engagement are contestable across platforms, not confined to the services the FTC identifies.
TikTok’s competitive role was already central to Meta’s strategy: earlier coverage described an internal push to prioritize short video amid unprecedented competition from TikTok. Zuckerberg’s testimony turns that business rationale into evidence for the antitrust case.
First-order effects
Meta gains a high-profile factual basis for arguing that Facebook and Instagram face meaningful competitive pressure, directly challenging the FTC’s narrow market framing.
The FTC must contend with TikTok not merely as a peripheral service but as a platform Meta’s chief executive identifies as a leading threat.
Second-order effects
The case places greater weight on how courts measure substitution across different social formats, particularly whether users’ time and creators’ attention can move between short-video and social-networking products.
Competitors’ product moves in short video and recommendations become more relevant evidence of rivalry, rather than only evidence of feature convergence.
Third-order effects
If courts increasingly treat competition for user attention as crossing legacy product categories, antitrust market definitions for consumer platforms may become harder to sustain using service labels alone.
The broader result could be a more fluid view of platform moats: distribution, recommendation quality, and creator supply may matter as much as an incumbent’s social graph.
The trend: This is one data point in moat recomposition, where algorithmic feeds and short-form video are reshaping which platforms count as direct rivals.
I watched Mark Zuckerberg testify in DC court for 13 hours over 3 days for Meta's defense against the FTC trying to force the spin-off of Instagram and WhatsApp. — Here's my summary of what he said on the stand today: www.theverge.com/policy/65036...
Reminds me of when the FTC tried (and failed) to argue the Nintendo Switch didn't compete with Xbox and PlayStation when it tried (and failed) to block Microsoft's acquisition of Activision.
There is something just pathetic in the FTC basing its market definition, and its analysis of what Meta does, on a quote from 19 years ago. This has not been what Meta was for a very very long time. [image of a blog post from 2006: “Facebook is about real connections to actual …
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The FTC's questioning attorney *appears to be* chief trial counsel Susan Musser, who recently was serving as acting director of the Bureau of Competition. This direct is night and day from what we heard so far. Tight, short questions, short answers from Sheryl Sandberg.
If I were the FTC's lead counsel, Sheryl Sandberg would have been my first witness. Completely changes the flow of the trial to start with a friendly witness. Starting positive then makes later difficult witnesses (Zuckerberg) seem shadier.
Longtime Meta COO Sheryl Sandberg is on the stand, and it sounds like she's a much friendlier witness for the FTC than she may have been just a few years ago 👀