ELI5: Explain Like I'm 5

Arthur C. Clarke

Arthur C. Clarke was a really smart man who lived a long time ago and wrote books that were really popular. He wrote about space and technology and made people think about what might happen in the future. One really cool thing he did was come up with ideas that later became real inventions, like the idea of geostationary satellites that help us communicate with people all over the world. Lots of people think he was a genius!