In the years leading up to covid, I was a caregiver for my grandparents and watched them slowly lose their minds before they went. My grandfather was especially bad at the end. So my two biggest fears regarding covid are the death of Herd Immunity, which we're watching occur, and this shit. 
The idea that it causes CNS demyelination is horrifying. I'm worried that longterm the mild cases will be similar to the etiological link between mononucleosis and multiple sclerosis.