Decentralization Never Looked So Good – Jay Graber Mundus Sine Caesaribus Shirt Makes a Statement Against Billionaire Domination. At SXSW 2025, Bluesky CEO Jay Graber sent a clear message—not just through her words, but through what she wore. Her Mundus Sine Caesaribus Shirt, meaning “a world without Caesars,” turned heads and ignited discussion about the role of tech billionaires in shaping the future of the internet.
Jay Graber Mundus Sine Caesaribus Shirt — The Fashionable Battle Cry Against Tech Monopolies
The shirt was a subtle yet powerful rebuttal to Meta CEO Mark Zuckerberg, who had previously worn a shirt reading “aut Zuck aut nihil”—or, “either Zuckerberg or nothing.” This framing positioned Zuckerberg as an inevitable, central figure in the tech landscape. Graber’s Latin counterstatement directly challenges this mindset, advocating for a digital ecosystem that doesn’t rely on singular, all-powerful leaders.

Now, you can wear that message too. The Mundus Sine Caesaribus Shirt is a call to action for those who believe in open platforms, decentralized technology, and freedom from monopolistic control. Whether you’re a developer, an activist, or simply someone who supports a more open internet, this shirt makes your stance clear.
Available in T-shirts, sweatshirts, and hoodies in multiple sizes and colors, this Jay Graber Mundus Sine Caesaribus Shirt ensures you can showcase your beliefs in a way that fits your style. Join the movement for a world without digital emperors—wear it with pride.
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