A really cool article summarizing decades of amazing research by some very smart and determined minds.

Would it be possible to walk back the evolutionary chain of events that leads to a specific brain structure?

For example, one of the scientists says that the connectomes mapping might be in the order of peta bytes of peta bytes of data.

But they originated from a seemingly 'simple' millions or billions of pairs of DNA. Would it make sense to trace back from a system design or a theoretical limits perspective? The chain of chemical reactions from DNA to these neurons and so forth.. the combinatorics from a DNA perspective while very complex seems manageable compared to the mapping of neurons after they have evolved into a full 'creature'.