Researchers are having success reverse engineering the human brain. The problem is they will create a computer that acts like a human brain. No computer-like perfect memory. Just an ordinary human brain.
Some suggest they could make it superior by essentially speeding up the thought processes or find ways so that it wouldn't have to sleep but who knows if they could that. Speeding up the brain for certain things might be desirable but deleterious in other ways.
It might be easier and less dangerous to combine the advantages of computers and the superior reasoning abilities of humans by adding computerized libraries of knowledge and dictionary-like look-up capabilities to the computerized mind. However, the computer mind would have to want to use them.
Think about this way. Chess playing computers can play equally or better than human grandmasters under normal time-limit tournament conditions. However, if you give humans more time to move, humans can still defeat computers. Also, chess computers are programmed to avoid certain positions where humans can still easily defeat them.
Advanced chess is a special kind of chess tournament where very strong chess players play with access to very strong computers. The human computer combo is killer. The combination always wins the advanced chess tournaments which allow solo humans and solo machines to play but the solo entries never win.
They are developing things along the line of scanning human brains into computers so you really do start with a computerized-clone of a human brain. It could be a fetal brain but then just like a human it could take many years to develop or it could be a clone of an adult mind. Yeah, Frankenstein does come to mind. Imagine if the first mind they cloned was a politician or a CEO. We'd all be doomed for sure.