I’ve taken a deep dive into 3d printing. The tech moves at a slow but steady pace and it’s one of the few tech related things I’m aware of that feels like it’s a real user community movement still. Drones to some degree are getting this feeling too, but a bit more commercial crap there still.
Yes in high noise environments, like on airplane for example, open formats can be limited. Unfortunately I don’t think open formats can be your only headphone. That being said, for my day to day life at least they are my goto 95% of the time.