This is all a nonsense. I suspect that Cowen saw how well o3 performed in his field of economics, and wrongly generalised to assuming that it is reliable in other areas.
But perhaps you are not convinced by my evidence. o3’s final answer cited an editorial from Volume V of Lasker’s Chess Magazine, and my various links have been to digitised archives of other publications. Might OpenAI have got themselves an illicit digital copy of the Magazine that I was unable to locate, so that o3 could give correct information from it without being able to cite it?
No. Moravian Chess still exists, and you can buy Volume V (among others) for 29 euros plus postage. Here is my copy: