Not compared to somebody who specializes in the field of mathematics, no.

But I don't expect to change paper-machine's mind, where paper-machine expects to change mine. I expect more than appeals to authority. I have some prior that paper-machine might be right, given that this is their field of expertise. My posterior odds that they have a strong knowledge of this particular subject, however, are shrinking pretty rapidly, since all I'm getting are links that come up early in a Google search.