But even with 50 qubits, the amount of time per operation—if simulated classically—is at least a million+ times slower than what it would be for a quantum compu

But even with 50 qubits, the amount of time per operation—if simulated classically—is at least a million+ times slower than what it would be for a quantum computer. This is like comparing disk to L1 cache. Does that count for supremacy? Mathematically, no. Does it count for some kind of advantage? Yes.