Toni Gabaldón
ICREA research professor and head of the Comparative Genomics group at the Institute for Research in Biomedicine (IRB Barcelona) and the Barcelona Supercomputing Center (BSC-CNS).
I agree with all the authors' assessments and I think it is always important to clarify terms and concepts. Perhaps the text suggests that everyone believes in these myths and that the authors reveal something surprising to us. I think that in reality the field is already (for the most part) aware of everything that is said here, but that these myths continue to reach experts in other areas or the general public, leading to confusion.
The field of microbiome study (like other rapidly expanding fields) suffers from the existence of dogmas and simplifications assumed early on based on very limited information and that we have to correct and modulate as we learn more. One of the most important qualities of science is its ability to self-correct.