via scribd.com
This slide deck explains what it takes to create something that's going to be huge. It's been a great privilege to help give advice to other startups as they're getting off the ground as a part of being a YC alum and a former president of ASES Stanford -- and this time and again is the biggest message that people need to hear.
Your idea should be big. Huge. There are so many people out there doing so many things. Why do something small, or niche? Don't be afraid of going big. If you're good, you'll figure it out.
Your first idea is rarely ever the idea that gets you where you want to go. As Trip says, a successful startup is a series of good ideas executed well, in succession.
Adapt what is useful, reject what is useless, and add what is specifically your own.— Bruce Lee