Svmuu News: Quantum computing company PsiQuantum has begun construction on a million-qubit quantum computing facility in Chicago. PsiQuantum co-founder Peter Shadbolt shared photos of the construction site on X on Thursday, noting that 500 tons of steel had been erected in just six days.The company previously announced in September that it had raised $1 billion to build the facility, partnering with chipmaker Nvidia with the goal of making quantum computing commercially viable to support next-generation AI supercomputers. Scientists say that a million-qubit computing capacity is equivalent to hundreds of billions of conventional computers, enough to crack the encryption used by Bitcoin. Bitcoin Developers are currently discussing whether to take immediate action against quantum threats through a hard fork. A preprint scientific paper published last month estimated that cracking a 2048-bit key would require approximately 100,000 qubits, while the "Bitcoin" encryption uses a 256-bit key.The largest quantum computer currently in operation is at the California Institute of Technology, with a scale of 6,100 qubits. PsiQuantum co-founder Terry Rudolph stated in July that the company has no plans to use quantum computers to derive private keys from public keys.A February study by crypto asset management firm CoinShares noted that only 10,230 Bitcoin coins are both quantum-vulnerable and have publicly visible wallet addresses, representing approximately $728 million at current market prices.