Bluesky CEO’s T-Shirt Mocking Mark Zuckerberg Sells Out in Just 30 Minutes
Bluesky CEO Jay Graber took a playful jab at Meta CEO Mark Zuckerberg during her keynote discussion at SXSW 2025, wearing a t-shirt with a bold Latin phrase. The shirt, which read “Mundus sine caesaribus”—meaning “A world without Caesars”—was an apparent response to Zuckerberg’s own Latin-themed t-shirt from earlier.
Bluesky CEO Jay Graber took a playful jab at Meta CEO Mark Zuckerberg during her keynote discussion at SXSW 2025, wearing a t-shirt with a bold Latin phrase. The shirt, which read “Mundus sine caesaribus”—meaning “A world without Caesars”—was an apparent response to Zuckerberg’s own Latin-themed t-shirt from earlier.
A Rivalry in Latin Phrases
Zuckerberg had previously been seen sporting a black t-shirt with the phrase “Aut Zuck aut nihil”, a play on the historical Latin phrase “Aut Caesar aut nihil”, meaning “Either Caesar or nothing”. Graber’s response was a clear counter to Zuckerberg’s assertion, suggesting a world free from tech overlords.
The friendly trolling struck a chord with audiences, and Bluesky quickly capitalized on the moment by selling the t-shirt through its platform. In a post on Bluesky, Graber revealed that the shirts sold out within just 30 minutes of being launched. “Launched [the t-shirt’s sale] while I was on a plane and [it got] sold out before I landed,” she wrote.
Bluesky vs Meta: A Clash of Social Media Visions
Unlike Meta, Bluesky is a decentralized social network that offers users more control over their data and experience. During her SXSW address, Graber emphasized this distinction, stating, “If a billionaire came in and bought Bluesky, or took it over, or if I decided tomorrow to change things in a way that people really didn’t like, then they could fork off and go on to another application.”
She highlighted that Bluesky’s open-source framework ensures users always have the ability to switch to alternative platforms, unlike centralized networks like Meta’s Facebook and Instagram.
Social Media Reacts
The t-shirt stunt, along with Bluesky’s increasing popularity, has fueled discussions on social media. Many users praised Graber’s witty comeback, while others debated the future of centralized vs decentralized social media.
While the Meta vs Bluesky rivalry may not be as intense as some past tech wars, Graber’s viral t-shirt moment shows that the competition between the two platforms is heating up—one Latin phrase at a time.
Sources By Agencies
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