If we could ever figure out what wet brains actually do (continuous feedback,
? enzyme release ? ) this might be possible
Keep in mind that our brains also have a great deal of built in trained structure from evolution. So even if we understood exactly how a brain learns, we may still not be able to replicate it if we can't figure out the highly optimized initial state from which it starts in a fetus.
How much of, especially "higher level cognition" like language, is encoded genetically is highly controversial and the thinking/pendulum in last decade or two has shifted substantially towards only general mechanisms being innate. E.g. the cortex may be in an essentially "random state" prior to getting input.