Hate to say it, but Wintergatan and his Marblemachine X. In the earlier days his videos were an exciting mix of mad genius, cool music improv and crafting. Then he became obsessed with making the machine play tight, precise music to a level that is beyond what anybody in an audience would be able to hear, and it became obvious that the machine would never get finished because he was stuck in an improvement loop.
Yeah, pretty much this. Would have been best had he never bothered with 3d printed and manufactured parts as they allow a level of control (or illusion thereof) that would have never been possible with wood. Who cares if you’re losing a couple of marbles during a show (no pun intended), or if the snare drum isn’t tight to the thousandth of a second?