Even on the whole-brain emulation route, the most powerful supercomputer built today is sufficient to do WBE of a human
Why do you think this? We can't even simulate proteins interactions accurately on an atomic level. Simulating a whole brain seems very far off.
Not necessarily. For all we know, we might not need to simulate a human brain on an atomic level to get accurate results. Simulating a brain on a neuron level might be sufficient.
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