Yes. I'll touch on that, and also close on your question, Robert, with regard to the session depth dynamics. So, first, with regards to the Q4 revenue guide, it really is a couple of different components. The first and the one we have highlighted already quite clearly is, it starts with the vertical dynamics. And specifically, we started to see – we've seen continued slowdowns in areas like we've highlighted, like financial services, but at the same time areas like home services started to see more pressure relative to prior periods and prior expectations. Now, while we see continued momentum in a number of different verticals, you called out a few of those, things like healthcare in Q4, areas like retail, at the end of the day, that wasn't enough to offset the near-term pressures on our enterprise direct-sold demand. That downstream has effects on our CPM in the period. And so, those supply and demand dynamics meant that a greater share of – in the fourth quarter, specifically the greater share of our ad impression inventory, which is still growing significantly, was ultimately met by slightly lower CPM dynamics. Now, this is on top of broader industry-wide CPM pressures as a number of our peers have highlighted. At the end of the day though, it comes back to one key point, which is, we continue to see very high levels of advertiser retention. And so, that gives us confidence that has expanded new verticals as those new logos as Sarah added continue to ramp on the platform, and there is still a very solid foundation for future growth. Unfortunately, that growth is going to be over a slightly longer time horizon than what we had previously indicated. So that's on the revenue front. And then, with regards to session depth, you also referenced session frequency. That certainly is a core part of our notification strategy. Session depth is really getting into the dynamics, when a neighbor comes and engages on the platform, and so I want also to be highlighting that 30% growth that Sarah mentioned is quite substantial, and it is a continuation of the dynamics that we saw in Q2 and it's something we expect to continue in Q4. And that's really a function of content – more relevant, more personalized content. This is where areas like AI become really important and have played a role in helping us be smarter about understanding how neighbors engage with notifications, how different neighbors interact with different types of notifications. And ultimately, we have a richer picture of how they engage and how to make their time in the app better. So that's really been a core part of our session depth dynamics, and that's an area where we continue to have conviction.