How to tell what will come tomorrow with computer pictures of the real world

I am going to talk about how we make stories about change in our lives when we know that cold and hot days, rain and wind will change. The reasons for the changes are in many cases what people do. And the changes will make people's lives worse. We tell people how to plan for that. We have computer pictures of the world that look like real, but are a bit different. We have a lot of them. Then we put them together and see what they show. We also take a very good one, and a very bad one, and see in what they do not agree.