Nikola Tesla was the greatest dream creator of the 20th century but, at the same time, he remained a genius forgotten by history. In his multifaceted career he has silently revolutionized our era by giving us one-of-a-kind inventions and discoveries. Mauro Paoletti's text not only retraces its history and chimerical discoveries but sheds new light on certain aspects that until today were almost completely unknown to the general public. Few know that Tesla gave birth to his most ingenious creations after meeting a master Indian who totally changed his life as he witnessed a unique event when he picked up intelligent signals, not of human origin, coming from space. He was the inventor of the radio, even if the first signal was sent by Marconi using his patents ( seventeen, writes Tesla himself). could be transferred wirelessly. The scope of this genius can never be fully understood but, undoubtedly, his creativity and imagination gave shape and substance to the dreams and expectations of the 20th century.