"Now, the reason that we think computer science is about computers is pretty much the same reason that the Egyptians thought geometry was about surveying instruments. And that is, when some field is just getting started and you don't really understand it very well, it's very easy to confuse the essence of what you're doing with the tools that you use. And indeed, on some absolute scale of things, we probably know less about the essence of computer science than the ancient Egyptians really knew about geometry.
Well, what do I mean by the essence of computer science? What do I mean by the essence of geometry? See, it's certainly true that these Egyptians went off and used surveying instruments, but when we look back on them after a couple of thousand years, we say, gee, what they were doing, the important stuff they were doing, was to begin to formalize notions about space and time, to start a way of talking about mathematical truths formally. hat led to the axiomatic method. That led to sort of all of modern mathematics, figuring out a way to talk precisely about so-called declarative knowledge, what is true.
Well, similarly, I think in the future people will look back and say, yes, those primitives in the 20th century were fiddling around with these gadgets called computers, but really what they were doing is starting to learn how to formalize intuitions about process, how to do things, starting to develop a way to talk precisely about how-to knowledge, as opposed to geometry that talks about what is true."
Ideas do not have to be earth shaking breakthroughs to push the human race forward. Things build on each other, effect of which is often missed.
There is wisdom is thinking long term, but not too long. The mental trap smart people fall into of thinking their idea should make an impact that will last longer and deeper only makes them vulnerable of being wrong. When you're just scratching the surface and don't know what's beneath, it's better to keep scratching than to speculate.
Even in short term, "no wireless, less space than a Nomad" changed the music industry. "Just a bigger iPod touch" is changing education.