Well yeah exactly! This starts becoming even more important as we start doing more and more unnatural stuff. Like if we started doing births in test tubes we ma

Well yeah exactly! This starts becoming even more important as we start doing more and more unnatural stuff. Like if we started doing births in test tubes we may find out a whole bunch of edge cases arise because of "external" factors. On a less crazy sci fi issue, I've seen murmurs that sugar alternatives like aspartame can still have effects on your microbiota