The bottleneck wasn't, How do we make pixels prettier? It was, How do we engage with them more?
Touch is one of the most intuitive things in the world.
In fiber optics, the cable is a light pipe or waveguide, into which you inject light. If a finger presses on the pipe, it disrupts that light within the waveguide.
Multi-touch-sensing was designed to allow nontechies to do masterful things while allowing power users to be even more virtuosic.
I want to be a serial entrepreneur: Incubate an idea, get it to a good state, and make that an enabler to get to the next state. It's every researcher's fantasy.
If you watched companies such as Sony and Samsung grow, they focused first on features and then on industrial design, which made their products look and feel better.