Yeah. No, I think that, you know, those - the assumptions that Jeff just went through are exactly the assumptions we have in our - in our calculus here. But I think when you look at - when you look at this quarter and you look at the trends that we're seeing, I mean, we're seeing an increase in bookings, right? So we're seeing our travel - our travel bookings are up 50% over the - this quarter up 50% over Q4 '20. When you look at - and we look at this really carefully, when you look at February versus March, in March now, you know, we were 50% of 2019 bookings, and that was 19%. So we have 31% in February and then went to 50%. So we feel - we feel really good about that. When we also start to really dig into the data, we start to look at, you know, sort of cohorts of spending. And we're seeing, you know, people that are younger are getting back at a much higher level. Their overall T&E spending is probably about 85% to 90% and, you know, almost 100% back to where they were in 2019 in restaurants. And then when we look at older people, as they get vaccinated, we're seeing sequential growth month-on-month, as we look at their growth. And so, if you look at, just people over 45, you're seeing an 11% increase in their overall T&E spending month-to-month. We - that's only going to get better for us as we move along. And the last - the last thing that, you know, gives us a lot of great hope is, is redemptions, is MR redemptions. I mean, you know, when you go back and look at sort of MR redemptions that we had, our MR point redemptions in the fourth quarter for air [ph] was like 30%, and it's up to 54%. So we are, you know, we're doing some good things here. And our customers are doing some good things. And we'll continue to make sure that we're retaining these customers because they're going to spend. And as, you know, Jeff said, our co-brand cards are doing quite well as well. So, you know, all of that leads to, again, in an environment that continues to improve, us having a lot of confidence in hitting our 2020 plan in 2022.