what if each key on a keyboard had an anti key instead of just being "off."

what if when multiple keys were pressed, or off in a specific relationship the result was a separate analog state or resulted in a different combination of keys.

vocal based mouse - sing low to get to the bottom of the screen, sing hi to get to the top quiet is left loud is right. you could just say click to click.

an array of analog input where some inputs are delayed while others occur in real time. what if your mouse moved in realtime in one direction and lagged in the other? it'd be shitty.