[gist]

The article gives the impression that he is a professor at Princeton but he is not. He is a professor at George Mason University.

The picture caption is "Princeton" and this paragraph is what had me thinking that:

> If a student wants to study at Princeton, he doesn’t really need to apply or pay tuition. He can simply show up and start taking classes. As a professor, I assure you that we make near-zero effort to stop unofficial education; indeed, the rare, earnestly curious student touches our hearts. At the end of four years at Princeton,

[Mirioron]

He got his PhD from Princeton though. That's probably why he mentions Princeton as his example.

[gist]

It's super ironic that he would use the sleigh of hand in his writing in that way. Sure at the end it's disclosed that he is not (currently) teaching at Princeton.