Here's one of mine that i wrote down. Kinda abstract but its cool to think about.
The world that we live in is divided into three dimensions, x, y, and z axes. With the addition of time, we can measure and determine events, which make up the world we live in. If we were to input all of the world’s phenomena (ei. gravitation, electromagnetic forces, etc.) into a system, which could understand and follow how all masses are guided and controlled by these forces. If, after all, it could follow what’s happened, it could predict what will happen to every mass on earth in small scales, relative to the size of Earth, which are outside of human contact. And possibly predict what will happen to masses in contact with humans, all by following and predicting trends. After that we could attempt to have the system show the happenings, on the smallest possible level, thus coming close to predicting the future in these four dimensions in which we occupy. This could be useful in other ways besides what’s listed above, if/when this fails to work.