There is going to be an obvious bias here because a good fraction of those people will be anti-maskers, anti-handwashers, anti-vaxxers, ... basically mentally defective to begin with.

I don't see how you can account for this. It would be unethical to give a random sample of people Covid-19, and measure the cognitive abilities before and after.

What does this report say, as I can't seem to read anymore.

What am I doing with my fingers?!

These sounds in my head, seemingly playing my body as an instrument, are unnerving.

Why am I here?

What am I?

How?

Achoo!