Steven Johnson’s short (4 minutes!) talk “Where Good Ideas Come From” provides awesome insight in how ideas develop.
For me, it emphasises the importance of Upstarta principle #4: “Pragmatic on Intellectual Property (IP): speed-to-market over protection. Share information. No software patents.“, specifically the bit about sharing information. Keeping everything to yourself hinders you. Others do not have the motivation or the opportunity to do the exact thing that you want to do right now, but they can help you along.