Well, in this short, wrap-up episode, we will put together all the things that we have so far discussed with respect to why NPV is better. We basically said that the approach of NPV serves the goal of value maximization. Because it is better in terms of representations of the interests of major stakeholders that worry about value. Because remember when we talked about dealing with accounting. We said that in accounting most stakeholders are outsiders or managers. And oftentimes they put some more emphasis on net income and other accounting criteria. And it is the NPV criterion that actually puts more emphasis on the idea of cash flow, which is key in value creation. So that is the overall view. Now, we studied a couple of other criteria. And then we basically said that some of them are poor, some of them are better, some of them are close to NPV. Some of them are actually similar, given certain simplifying assumptions. But for now, we are moving towards applying, NPV, let's say we all agree that this is better. Now, what should we do in order to apply that in real-life situations? You remember that NPV is all about cash flows and r's. So in our second week when we studied some examples, we were taking these cash flows and r's as givens. Now, reality is, unfortunately, not so simple. So you have to somehow extract these cash flows and r's. Now, in what follows this week, we will mostly discuss the correct treatment of these cash flows. So basically our job is, I put that in red, we have to avoid mistakes here. So we are not pretending to know that for sure or with certainty, but our job is not to commit mistakes. So let's see, we have here, Cash flows, and then here we have r's. So about r's, this is, like I said, mostly week 4, mostly. But some observations we will do right now. But with cash flows, this is what we will study in the following episodes. And our job is basically what to discount, how to discount, and what must be taken into account in order to avoid making mistakes. So this is not so trivial, because oftentimes people are tempted to read cash flows in a simplified way. And sometimes it's a good approximation. But sometimes that results in potentially really gross mistakes that cannot be any longer disregarded. And that's exactly what we will do. So basically these major questions, like what to discount, and why this and not that. This is what we will study, starting from the next episode.