I'm quite confused. I learned 20+ years ago that lead poisining from the wine was the cause, or at least the suspected cause of Beethovens deafness. It's great that they found lead in his hair (again?), but thoroughly weird that they don't mention that it was the go-to theory already.
On a large tangent, I tried asking GPT-4o to check the article whether it mentions that previously that theory already existed (could have overlooked it). GPT-4o confidently made up a complete quote from the article, then doubled down after I said I couldn't find the quote, and finally reversed its opinion 180 degrees. It's of course much too early to tell, but my feeling from a handful queries has been that GPT-4o hallucinates quite a bit more than GPT-4.
On a large tangent, I tried asking GPT-4o to check the article whether it mentions that previously that theory already existed (could have overlooked it). GPT-4o confidently made up a complete quote from the article, then doubled down after I said I couldn't find the quote, and finally reversed its opinion 180 degrees. It's of course much too early to tell, but my feeling from a handful queries has been that GPT-4o hallucinates quite a bit more than GPT-4.