(Shrug) I don't require scientific proof of the inverse-square law. It's self-evident to the point of being axiomatic. Standing 6 feet away from a virus source will expose you to about 44% fewer virus particles than standing 5 feet away from one, while not imposing any real hardships in most public interaction scenarios. What's controversial about that?
If you demand precise scientific rigor in all aspects of everyday life, public health is probably not the career field for you.
If you demand precise scientific rigor in all aspects of everyday life, public health is probably not the career field for you.