I think frugality drives innovation, just like other constraints do. One of the only ways to get out of a tight box is to invent your way out.
If you invent frequently and are willing to fail, then you never get to that point where you really need to bet the whole company.
What we want to be is something completely new. There is no physical analog for what Amazon.com is becoming.
Every new thing creates two new questions and two new opportunities.
One of the things that I hope will distinguish Amazon.com is that we continue to be a company that defies easy analogy. This requires a lot of innovation, and innovation requires a lot of random walk.
