Comment by seidleroni

The author actually discusses the results of the paper. He's not some rando but a Wharton Professor and when he is comparing the results to a grad student, it is with some authority.

"So is this a PhD-level intelligence? In some ways, yes, if you define a PhD level intelligence as doing the work of a competent grad student at a research university. But it also had some of the weaknesses of a grad student. The idea was good, as were many elements of the execution, but there were also problems..."