It does seem, though, that using chinchilla like techniques does not create a copy with the same quality as the original. It's pretty good for some definition of the phrase, but it isn't equivalent, it's a lossy technique.
I agree on the lossy. There is a tradeoff between efficiency and comprehensiveness, kind of. It would be pretty funny if in the end, the most optimal method turns out to be the brain we already have. Extremely efficient, hardware optimized, but slow as hell and misunderstand stuff all the time unless prompted with specific phrases.