Cold haircut theory discussion thread

Discuss cold haircut theory and cold haircut related theory shenanigans here. If you haven't seen it, here it is: https://www.youtube.com/playlist?list=PLzMQ_Oo1Ah0JxTE43Iq0GRq6eLbSxTrTk - It's a pretty top notch anime if I do say so myself. Come up with some theories. I didn't make cold haircut by the way.