Elon Musk Backs the Physics Behind a Claim Quantum Computers Can't Break Bitcoin
Elon Musk has backed a fringe physics theory that says quantum computers can only grow so big. Crypto traders turned his five word reply into proof that Bitcoin (BTC) is already safe from them. But it is not proof. The theory comes from Oxford physicist Tim Palmer, predicting that quantum machines stall somewhere between 200 and 400 qubits. Sponsored Sponsored What Musk Actually Said Musk was not talking about Bitcoin. On August 29, he replied to an Institute of Art and Ideas post about Palmers work. The universe is integer in units of Planck cubes — Elon Musk (@elonmusk) August 29, 2026 Follow us on X to get the latest news as it happens He agreed the universe comes in fixed chunks. He said nothing about private keys or Bitcoins quantum problem. Investor Fred Krueger cited him a day later anyway, under the headline that Bitcoin is already quantum-safe. “Bitcoin may already be quantum-safe…The latest estimates require at least 835 logical qubits to break Bitcoin‘s signatures with Shor’s algorithm…Elon Musk and Steve Jurvetson have commented positively on this research,” he said. The Physicist Behind the Theory Palmers credentials are real, though they sit outside this field. He is a Royal Society fellow, elected in 2003, and spent his career building weather forecasting









