I think I've had just about enough internet today.
I found this video weirdly interesting and knew there was something not quite right about it; there were an awful lot of nail tapping and other unnecessary movements and sounds. So, as one does, I looked to see if she had any other videos and noticed they all had something to do with something called ASMR.
So I googled it, as one does, and found out it stands for autonomous sensory meridian response - a neologism for a perceptual phenomenon characterized as a distinct, pleasurable tingling sensation in the head, scalp, back, or peripheral regions of the body in response to visual, auditory, tactile, olfactory, or cognitive stimuli. via wiki
That lead me to a strange Vice article, even stranger youtube videos, and then to a somehow-even-stranger reddit page....
Yup, enough internet for today.