> It seemed crazy to me that with all the amazing technological advancement we had, our efficiency in communicating via the computer wasn’t much higher than someone with a typewriter 150 years ago.
We're making electric super cars that still use a steering wheel and gas pedal. Just because it's old doesn't mean it's deficient. Humans haven't fundamentally changed in the past 100 years, so it is probably the most intuitive way to manually control a car.
The typewriter/keyboard is probably the most intuitive method to input alphabet characters. Of course that doesn't preclude entirely new ways to control our computers. But if you set out to simply replace the mouse and keyboard without fundamentally changing how we interact with a computer, then you're setting yourself up for failure.