Daniel J. Bernstein on Nostr: estimates 2^29 qubits running 1/3 hour to break an ECC key. estimates 6 watts per ...

https://arxiv.org/abs/2603.28846 estimates 2^29 qubits running 1/3 hour to break an ECC key. https://arxiv.org/abs/2304.14344 estimates 6 watts per qubit. 2^30 watt-hours costs about 0.1 million USD in electricity + cost of building hardware. More analysis can change numbers in either direction.