“So all of those trends we expect to continue, and we're going to work hard to make sure they continue.”

In context

“that? You've got a massive number of Prime users who are coming in with a reasonable CPM with low ad load, but it seems like there should be a substantial opportunity for you. So if you want to try to size that for us or how you think about the upside, that would be really appreciated. Thank you. Brian Olsavsky: Sure, Mark. Thank you. I think Andy laid it out pretty well a few minutes ago on the cost structure, the regionalization, the -- growing into the assets that we added during the pandemic, great efficiency and work with productivity across really all of our operations network fixed -- attention to fixed cost and lowering costs where we can, maintaining costs where we can, the increase in advertising, success in advertising revenue growth that's outpaced our traffic growth rates. So all of those trends we expect to continue, and we're going to work hard to make sure they continue. And as we said, we have one guidepost is maybe pre-pandemic profitability, but we are working to -- we're not putting a limit on our improvement. We're going to continue to look for ways to lower the cost to serve. And I might add, at the same time, increase the customer experience because we did that -- we had that cost improvement at the same time when we at first got back to our shipping speeds from pre-pandemic and then exceeded them. So we're happy with that, and we'll continue to do both to improve the customer experience and also to lower our costs and leverage our cost structure. Yes, your second question on ads. I can't scale it right now. I mean what I would say for ads in videos is that advertisers are excited to access our Prime customer base. We are looking for ways to increa”