Given the persistent bruising on his right hand. I recognize that from personal experience.

And there is a genetic component.

There’s speculation that it’s FTD. Whatever’s wrong with him, his doctors can’t tell and his loyal lackeys won’t.

of penicillin, or an even stronger antibiotic, to deal with neurological involvement as the result of late stage syphilis. I don't have any evidence, but I have seen on the Internet he is syphilitic, and I tell people it is true. I hope it is!

I am reading book 2 of the Baroque Cycle. Neal Stephenson is a brilliant writer.

IOW, I want to know if there's a way to tell by looking