AI is very useful, even if the pioneers had to give up on the dream of human-level or human-like intelligence. There is quantum cryptography, but other than tha

AI is very useful, even if the pioneers had to give up on the dream of human-level or human-like intelligence. There is quantum cryptography, but other than that I find it hard to find practical value for quantum computers before they reach the limit, maybe around 80 qubits fit for general computation, that they start to be faster than classical computers. Faster for solving meaningful problems, not useless problems designed for the quantum computer to solve fast.