The human brian is encoded via surprisingly limited amounts of information in DNA. It’s therefore more elegant than many modern AI systems.

The often quoted 6×10^9 base pairs overstates the complexity as a lot of non coding DNA exists, and much of what’s left is redundant or does not relate to the brain.

PS: We actually know quite about about how the brain learns and computes information. The are really interesting information about how the optic nerve encodes information for example.