[bigbob]

According to “of one of the many Kevin Duffy’s on the ‘net.” who gives us nothing on which to evaluate his knowledge or credibility on the topic.

Hard pass.

[NobleFree]

who gives us nothing on which to evaluate his knowledge or credibility on the topic.

That's why one needs to be mathematically and scientifically literate: then one can evaluate the results (which are what matter) rather than the credentials.

As a PhD physicist currently employed as a predictive modeler, I say Kevin Duffy nailed it.

[Arones]

According to “of one of the many Kevin Duffy’s on the ‘net.” who gives us nothing on which to evaluate his knowledge or credibility on the topic.

I've never heard the Kevin Duffy reference before? What does it mean? I ask because one of my professors in my data science MS was name Kevin Duffy-Deno.