mmmrtl

Obviously, random chance... It's a bit ignorant/racist to expect people from different countries to look distinctly different (fashion notwithstanding), when genetics are so overlapping

I think that's the point... Then world coin comes to the rescue

second suspect also released...

Why do you think this is reputable research? MDPI does not inspire confidence, and it's written by a UFOlogist-chemist. And what is "radar ultrasound"?!

Probably the vast majority of studies are correct and a few misinterpret artefacts, and then a journalist uses an evocative word like "teeming" without knowing that what they're saying doesn't pass the sniff test. Same reason these papers languish for years and don't pass peer review in rigorous journals

Why hasn't it passed peer review yet? Maybe because they only used techniques prone to artefacts. IMO if a brain microbiome exists in healthy people it would have been seen already, with all the microscopy and sequencing done

Explain to us how water "tension", density, and viscosity are variables that would change? It's just water, and temperature is set at ~25 C. The shape of the pool and gutter setup are the only major factors at play, assuming the filtration system isn't causing major currents.