There&#x27;s no laser there. If there was a laser there it would be a significant hazard to everybody in the room, so it&#x27;s good it&#x27;s completely fake. With the sort of power you would need to be cutting hairs in any capacity simply looking at diffuse reflections (think a laser dot at a wall) would have the ability to permanently damage your vision. The video is someone fooling around with a piece of aluminum and a hot wire[0]. It&#x27;s a testament to human stupidity that something this blatant managed to get $4M.<p>[0]: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Hot-wire_foam_cutter" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Hot-wire_foam_cutter</a>