So a simple high level kind of first principal way that we think about this is at different stages in someone's life, and also if you think regionally at the stock of human capital, if you will, in a given region, it's about creating human capital and then through employability, turn those human capital skills and knowledge, et cetera, into financial capital. And if, obviously, you don't have a lot of financial capital, you're not going to see very high conversion rates and not a lot of money paid. But in the longer term, we see that a young person in high school or college, say, an undergrad in college, although they cannot buy a lot of stuff right now, in fact, they often go into debt when they fund their education, over their lifetime, there might be reasonable economic value to us if we can supply their lifelong learning needs. So when they're building human capital, they will be a little bit harder to monetize. But as they start developing that human capital, start making some income and then reinvest some of that income in future human capital development, that's when they buy a bachelor's degree or that's when they buy a master's degree, or that's where they buy an advanced specialization, we think that the conversion could be better. So similarly, when you think about it as a region, if you think about China, if you think about India, if you think about Latin America and in still early stages, but Africa, regions are building stocks of human capital. And as the middle class rises, typically, they start putting more of their disposable income into education. But it's a long process. I mean this is not an overnight thing. So today, what we see is the highest conversion rates and the highest percentage of revenue across every segment of our business coming from North America and Europe. Those are the developed economies. They have the disposable income. They're making the money to spend it. Over the longer term, though, we are working on building the funnel at low acquisition costs, like almost free acquisition costs because that's the only way you can really do it, in these emerging markets often through government and institutional partnerships to really keep our acquisition costs low. And then we hope to build LTV and conversion as those regions mature, as the middle classes grow, as disposable income rises and a greater attention is focused on not only learning but also learning credentials. That's at a really high level the way we think about it. Today, I'd say we're still in the early stages where higher conversion and higher activity is coming from developed economies, but we think the long-term play is more global than that.