I first found this in 2007ish, when it was going around select places online, and I just came across a gif of it again, which reminded me of it. It’s creepy, though contains philosophy within it, too. Metaphysics, morality, existentialism, wrapped up in your worst nightmare.
I’m really unsure how Einstein even fits in to this, and I’m also unsure if it really is a children’s cartoon as it says. I’d hope not, both because of its freakyness and also because how unaware must the creator be to not realise that a child probably isn’t going to get the philosophical references?