Elon Musk says he plans to give away nearly his entire fortune. The pledge answers a public challenge from Nobel Prize-winning economist Daron Acemoglu.
The challenge cited a claim Musk made in a video interview. He said robots and artificial intelligence (AI) will soon make goods so abundant that money loses its meaning. Acemoglu, however, asked Musk to back that claim with real money, not just words.
Musk’s Trillion-Dollar Challenge and Shrinking Fortune
Daron Acemoglu, a Massachusetts Institute of Technology (MIT) economist who shared the 2024 Nobel Prize in Economic Sciences, posted the challenge on X on July 27. He proposed that Musk donate his roughly $1 trillion fortune to charity no later than 2036.
Acemoglu argued the pledge would demonstrate genuine confidence in Musk’s own AI predictions. It would also, he wrote, ease public worry over the political influence of billionaires and trillionaires. He further asked for an impartial body to pick the charities, all effective and non-ideological.
The post quickly drew attention. Commentator Gad Saad amplified it on X, noting Acemoglu’s Nobel credentials. Musk answered within hours.
He offered no further detail on a timeline, dollar figure, or charitable vehicle. Therefore, the scope of his pledge remains unclear.
The challenge landed as Musk’s wealth kept falling. His net worth dropped to $695.7 billion on July 27, according to Forbes, after SpaceX shares slid another 4.8% to around $109.50. The stock has now fallen roughly 50% since its June 16 peak, even after a successful Starship test launch. Musk’s stake includes 4.8 billion SpaceX shares plus 350 million stock options, so each price swing moves his fortune sharply.
Forbes’ real-time billionaires tracker put his fortune at $715.6 billion on Tuesday, down 1.32%, or $9.5 billion, on the day. Google co-founders Larry Page and Sergey Brin followed at $268.8 billion and $248 billion, both up 2.12%. Amazon founder Jeff Bezos trailed at $242.6 billion, down 0.26%. All three remain well behind Musk despite his recent losses.
Musk recently called himself a former trillionaire after a SpaceX slide pushed his net worth below trillion status last month. He first crossed that threshold following SpaceX’s record Nasdaq debut in June, a milestone that fueled fresh debate over America’s widening wealth gap. Despite the recent drop, Musk still holds a commanding lead over the world’s next-richest people.
What Investors Will Watch Next
Acemoglu’s challenge adds fresh scrutiny to Musk’s AI forecasts, which he expanded on in a recent AI risk interview. Meanwhile, SpaceX shares face an August share lockup that could pressure the stock further. Some analysts still see room for a rebound, while others warn a slide below $100 would signal little investor confidence in the company’s AI ambitions.
Whether Musk formalizes his pledge remains an open question. His fortune’s next moves, and SpaceX’s, may ultimately decide the answer.
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