The human superorganism

Given that we are now beginning to reexamine the mutualism between the bacteria that inhabit our gut (and other areas of our body), I’m curious how does the concept of microbiota-mediated signaling on the human brain and metabolism fit into the overall AGI picture?

I’m personally fascinated by the new links that are being discovered and the beauty and complexity of this system is causality is very difficult to prove either way…how might AI change the approach to understanding the interplay between us and that which lives within us (i.e. who’s controlling whom??)