 Now, let's take a look at some low-cost solutions because this is really what this course is all about. We want to talk more about solutions than about the problems. So, how do you make a society healthier without much money? That's a really big question that the leaders of countries wake up every day and ask themselves. And really, if you boil it all down, it comes down to being better access to public health services. So that basically just means clean water. It means safe food, decent housing, which this is a little bit harder. Being able to offer housing on a wide scale to an entire country is not as easy as checking your food and providing safe water. So, decent housing, adequate sanitation, which can be provided at low cost in some situations, but not all. And then improved education, especially in the area of health, which is something that we at Alversity are working at. So improved education. Alright, and we're going to talk about all of these different things. There are all big discussions. There are no secrets here. People have known these things for a very long time. But we're going to be talking a lot about all of these different points and these different solutions to lessons coming up in this course.