Yes, look, it is - I think if you just look at the perspective and say, students note, the bigger the student base gets, the older that it gets and more diverse than it is, the different income backgrounds that people come from, the different support levels that people will come from, when more support they need. And Chegg is in a position to capture that and we've been capturing it. I mean we went public seven years ago and look how far we've come as a business. And I think that's an indication of just how much the world has already shifted in the direction that Chegg is going. What we can feel comfortable in saying from this semester is that usage is agnostic to geography. If you're at the school or if you're not at the school, you subscribe and use Chegg very similar way. Those they were at school and not at school are taking the same take rates, are Chegg Study, whether they're in school physically or not in school. So, for us, we see this as a permanent situation, but we've always believe that that was going to be the case. What COVID did was sort of reveal how much need students have and allowed us to accelerate our account sharing efforts and accelerate our growth internationally. I mean, now other companies that grow 69%, we're a seventh year as a public company in terms of subscriber growth. So we don't see any evidence that things will go backward. If anything, we are going to see as schools go more hybrid, we're going to see more students in the system last year, which means you're going to need more support of the things that Chegg does. As students start to speak in a much more aggressive way, better ROI, shorter times to enroll and acceleration of learning to earning what we do at Thinkful, we'll have a much more meaningful impact, because it's very clear. Again, one of the things that COVID has revealed is that those who don't have the skill to be working in technology enabled environment, it doesn't mean you're a coder. While you need to understand and utilize technology those are the ones that were most susceptible to furloughs, and to layoffs. And so you're seeing a rush of people who now get it without any qualification, but they need these skills and that's going to boom to Thinkful others in that space. And by the way you're seeing Universities trying to do that now because they've recognized that students don't have four or six years to take off, they don't have $80,000 to spend, they'll have jobs when they're trying to learn, they have families when they're trying to learn. So we think we're positioned exactly where the person who helps defining when the category should be. And this confidence is built by the fact that we're seeing, not buying anything else.