You definitely don't start from zero each time, that's true. I still use things that I learned when coding in Pascal. Concepts of linked lists, recursion, etc

You definitely don't start from zero each time, that's true. I still use things that I learned when coding in Pascal. Concepts of linked lists, recursion, etc. But consider this - when I started programming there was no such thing as the web! There was no browser, no javascript. Yet I make my living right now developing for all of those technologies. I was thinking technology was stabilizing a bit, but then all of a sudden mobile comes along! It seems like every 5 years there's some major game-changer. You have to really love this industry to keep up!