Someone on X (the former Twitter) was criticizing the deal Anthropic struck with SpaceX to use its Colossus data centers. The argument was that handing $45 billion to SpaceX through May 2029 could be a massive unforced error, potentially letting xAI drain Anthropic’s token traffic and leaving Claude as a niche product for premium tasks.
Elon Musk read that and replied with one of the more extraordinary claims you’ll see from a CEO. “You don’t seem to understand that SpaceX will be worth more than the rest of Earth if we accomplish our goals,” he wrote.
What Musk actually meant by “worth more than the rest of Earth”
The global economy produces about $110 trillion in output annually. SpaceX is currently valued at around $400 billion. The math between those two numbers is staggering, and Musk knows it. That’s exactly why he said it the way he did.
His argument isn’t that SpaceX will be worth $110 trillion next year or even next decade. It’s that a company controlling the infrastructure of a space-based economy, one that can harness the energy and manufacturing potential beyond Earth’s atmosphere, could eventually operate at a scale that makes terrestrial GDP look small by comparison.
He’s made versions of this argument before. “Space is the only way to scale at scale,” he wrote on X, pointing to Earth-based bottlenecks in AI compute as the reason he’s been pushing satellite-based processing so aggressively. The July 9 post was the same thesis, just stated more bluntly than usual.
SpaceX Starmind AI satellite revealed the same day Musk made his claim
The timing of Musk’s post wasn’t random. The same day he made that claim, SpaceX published the first public renderings of its AI1 satellite, part of a new constellation called Starmind, dedicated entirely to AI compute in orbit.
The specs are worth looking at. Each satellite carries a 150 kW peak compute payload and runs off a 150 kW solar array, with a wingspan of 70 meters. The constellation connects through laser links and beams AI compute back down to Earth through Starlink.
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To deal with the heat that comes with that much processing power, the satellites use deployable liquid radiators that push heat out into the vacuum of space instead of trying to manage it with water or air, as ground-based data centers do.
This is the infrastructure Musk is betting on. If orbital AI compute scales the way he thinks it can, SpaceX doesn’t just benefit from launching satellites. It becomes the backbone of a computing layer that has no physical limits tied to land, power grids, or cooling water.
The Anthropic deal that triggered Musk’s response
The comment that set off Musk’s reply was about the xAI-Anthropic deal. Anthropic is paying SpaceX $45 billion through May 2029 to use its Colossus and Colossus II data centers, according to Benzinga.
The deal gives Anthropic access to the compute it needs to train and run its models, but the X user pointed out the risk: Anthropic’s money is directly funding SpaceX’s infrastructure buildout, potentially the same infrastructure that will eventually compete with Claude through xAI.
Musk didn’t address that concern directly. He answered with the bigger frame.
Whether the Anthropic deal is good for Anthropic is a different question. In Musk’s telling, it accelerates SpaceX toward a future where the company is so central to the global compute and communications stack that its valuation has no earthly ceiling.
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Why investors pay attention when Musk says things like this
A lot of people will read “worth more than Earth” and dismiss it immediately. That’s understandable. A company currently valued at $400 billion surpassing the economic output of the entire planet isn’t a forecast anyone can model.
But Musk has a track record of saying things that sound impossible and then building companies that at least partially prove them out.
SpaceX was going to fail. Tesla was going to fail. Starlink was widely dismissed as uneconomic before it became a real business with millions of subscribers. None of those validated the most extreme claims, but they moved the goalposts.
What Musk is doing with the SpaceX statement is less a valuation call and more a signal about how he wants investors and potential partners to think about the company’s ceiling. SpaceX isn’t a rocket company trying to win government contracts.
In his framing, it’s the foundational infrastructure of a civilization that will eventually operate beyond one planet. If you accept that premise, no price target based on Earth’s economy is relevant.
What Musk’s SpaceX claim means for investors watching the AI space race
For investors, the July 9 posts, both the Starmind satellite reveal and the X reply, tell you something specific about where Musk thinks the next phase of the AI infrastructure buildout is going.
He’s not just talking about data centers in Nevada or Texas. He’s talking about compute in orbit, funded by deals like the one Anthropic just signed, built on hardware that puts AI processing above the atmosphere where cooling, power, and physical space aren’t constraints.
Starlink already operates around 6,000 satellites in low Earth orbit. Adding a dedicated AI compute layer on top of that network is a real technical project, not a slide deck. Whether it achieves anything close to the scale Musk described on July 9 depends on launches, costs, and adoption curves that nobody can accurately model today.
But when Musk says SpaceX will be worth more than the rest of Earth, he isn’t predicting a stock price. He’s telling you the frame he’s building toward and asking you to decide whether you think he’s delusional or early. Based on the last 20 years, that’s a harder question than it looks.
Related: Elon Musk says he was wrong about Anthropic
