… the microbes are holding the reigns to a lot of what’s going on. If we were not doing a good job at passaging them around to additional culturing flasks — specifically other humans — they would undoubtedly discover ways to make us better at doing that.
I think a more optimistic, or different way to frame this, is just that we’re composite organisms. I think we traditionally think of ourselves — the human body — as a collection of human cells. And what we really are is an ecosystem. We have microbial and human parts that come together to work in a concerted fashion to make up this
super-organism. And we can’t forget about the microbes because they’re really an important part of our biology.
~ Dr. J Sonnenburg
If you haven’t heard much about how important are all the teeny little microbes living in your digestive track, this is a good podcast to get started.