You are wrong and extremely so. What have been simulated in supercomputers are tiny slices of simple animal brains, taking orders of magnitude longer than your 40:1 ratio. Simulating a human brain? Never been done. There aren't enough data to even begin simulating smaller parts of the human brain, one actually have to know about the system one want to simulate to do it!
Even so we don't even know what level of abstraction is necessary when simulating a brain to get something working like in nature.