Maybe it would be helpful to talk about the journey of AI Mode, just how it emerged and the steps that you took to now it's just such a big part of the Google search experience. When did this start? How did you decide this is worth betting on? And then what are the steps to get it further and further rolled out? Robby Stein: I mean, I think it probably started earlier on with AI Overviews actually, which was the first way we brought generative AI to search. And in that world, we noticed that people were asking these questions and many people were actually trying to put natural language questions into search. And so how can you provide helpful context links to go deeper and make an AI that made sense for Google? That was our first version of these models that could do this for people. And then by building into that and seeing this observation around people wanting more of it, direct access to it, and then being able to ask follow-up questions. You need a new modality. It's going to be really hard to build all of that within the construct of the core search experience. And so that led us to have form a small team of folks, a few people that were technical leaders, a couple designers very small to just prove out what if there was on, almost blank screen, delete, make a little fresh doc with a blinker.
Robby Stein: I mean, I think it probably started earlier on with AI Overviews actually, which was the first way we brought generative AI to search.