https://youtu.be/IjeKw0B8PG8
gain you ever seen something that makes your skin tingle and for some unknown reason provides you with a sense of unbridled peace and happiness? Gears working in perfect synchronization,a cake frosted with absolute precision, marbles rolling so smoothly it hurts. Something that is just...satisfying? Well here's five solid minutes of that feeling.
Source: boingboing.net