motors have been getting better but having both the max speed and max strength of a human arm at the same time in that small a space with a reasonable cost and power consumption remains difficult afaik

but it would be so much fun to design new arm parts, little gizmos etc

i would absolutely make my arm play doom, have a built in flashlight, battery bank, reactive rgb lights, modular customization, etc. since I have to be wearing a bulky electronic thing anyways…

there’s a guy on youtube who lost most of his hand who’s machined a very incredible purely mechanical replacement (no electronics)