The book titled “Free еnergy” is part of a series where the author, Elia, explores the concept of free energy through engaging dialogues. Free energy refers to energy that is accessible to everyone and inexpensive. Additionally, Elia delves into the concept of perpetual motion, a continuous motion machine, presenting a captivating vision of the world. In the book, Elia also investigates the possibility of harnessing artificial intelligence (AI) such as ChatsGPT 4 to create free energy.