Why market size doesn't really matter

Two observations from the Loopio episode:1. When you're working on your first startup, everything is hard. It's natural to think that the second time around will be much easier. It's not! 0 to 1 is always hard.2. Most VCs will tell you that you need a really big addressable market. Yet many successful founders started off without worrying about market size at all. Early on, market size doesn't really matter.