Over at 99percent.com, Jack Dorsey outlines three core takeaways from his experiences building and launching Twitter — and more recently — Square, a simple payment utility.
1) Draw: get your idea out of your head and share it,
2) Luck: assess when the time (and the market) is right to execute your idea,
3) Iterate: take in the feedback, be a rigorous editor, and refine your idea.