^^^this A DARPA researcher explained to me that a quantum computer's qbits would have to be 99.9999999999% error-free (that's 12 nines) in order to perform the

^^^this A DARPA researcher explained to me that a quantum computer's qbits would have to be 99.9999999999% error-free (that's 12 nines) in order to perform the necessary steps of Shor's quantum factorization algorithm. Current state of the art qbits are 99.9-99.99% error-free. Basically, we have a long way to go.