Exploring the concept of sending messages from Earth to potential extraterrestrial beings, the chapter discusses the technical aspects of transmitting messages, the potential response time, and the limitations of such communication methods. It touches on the idea of broadcasting the entire Internet for aliens to decipher, delving into efficient ways of sending information like radio waves, lasers, and even thumb drives on a rocket. Additionally, it delves into the implications of advanced artificial intelligence surpassing human intellect and potential encounters with aliens in space.