>>439506I gathered very few information, there is no answers, but here is the gist:
The hands is a phenomena where you see literal severed hands crawling/hopping around.
How do I know this? I have seen the hands dailey until I turned 8 years old.
Some theories include: The hands belong to a psychic, and hands are a primary tool used by the few actual psychics
another could be: they are cryptids, and its an overlapping universe thing