I'm still personally waiting for "analog" keys. Like with the Xbox One and PS4 controller. Where it knows how much you hold down a key. Still baffeled that isn't a standard today on the WASD and Arrow keys.
Once again I fell down the martial arts rabbit hole and am plumbing the murky depths of the internet's various martial arts and fighting crafts echo chambers.
If you're not actively involved and only get up to speed every few years or so, you can see the tide of public opinion flapping worse than my dong while I'm skipping naked down a hallway.