Amazon's CFO perfectly summed up Amazon's greatest strength in one sentence

Amazon had a mixed quarter, with a match in sales but lower-than-expected profits.
Investors were clearly spooked, driving Amazon's stock down by as much as 7% after hours on Thursday.
So Amazon CFO Brian Olsavsky had to spend a lot of time defending the company's low profit margins, repeatedly explaining the company's rationale behind higher investments during the quarter.
But perhaps the moment that best summed up Amazon's thinking came during the earnings call, when Olsavsky re