Oftentimes when you hear a startup CEO speak about their competitors, there’s a lot of talk about “validation of the market” and how there’s room for multiple winners. That may be true in some cases, but competition can hamper you in ways you may not immediately expect — and winning involves more than just building a superior product. That was one of the takeaway messages from LinkedIn founder Reid

Today Y Combinator is holding its sixth Startup School, where a roster of Silicon Valley’s most experienced and successful founders and investors come together to lecture hundreds of eager entrepreneurs. The event is always extremely popular, and today is no exception — the lecture hall on Stanford’s campus is packed to the brim.

Today’s event will feature eleven talks, including lectures