Evaluating expertise is hard. And we're not going to show you how to do that in any fine grained way.

But we will show you how to sanity-check expertise, to see if they are known to have expertise in their area or more pseudo than science, more salesperson than professional.

https://youtu.be/yU9JELSQGfU

In the second example we show we use Google Scholar. Google Scholar is here:

https://scholar.google.com/