[pcowans]

Develop a sense of curiosity, get into the habit of asking yourself why things are they way they are, even if you don't need to know the answer. Read widely about technology and follow the threads to new topics. Try things just to see how/if they work. Go's a great start - it'll get you thinking about programming language design, concurrency, networking, etc., and all of those will lead to something else.

You'll also need to be comfortable thinking about things you don't understand. If everything you do is familiar to you you're not thinking broadly enough.