Physics of the Future: How Science Will Shape Human Destiny and Our Daily Lives by the Year 2100 is a 2011 book by theoretical physicist Michio Kaku, author of Hyperspace and Physics of the Impossible.
It speculates on the possibilities of future technological development over the next 100 years. Interviewing notable scientists of their field of research Kaku lays out his vision of coming developments in medicine, computing, artificial intelligence, nanotechnology, and energy production,stating that "this book most closely resembles my book Visions."
Kaku writes how he hopes his predictions for 2100 will be as successful as science fiction writer Jules Verne's 1863 novel Paris in the Twentieth Century. Kaku contrasts Verne's foresight against U.S. Postmaster General John Wanamaker, who in 1893 predicted that mail would still be delivered by stagecoach and horseback in 100 years time, and IBM chairman Thomas J. Watson, who in 1943 is alleged to have said "I think there is a world market for maybe five computers."
Kaku points to this long history of failed predictions against progress to underscore his notion "that it is very dangerous to bet against the future". The book was on the New York Times Bestseller List for 5 weeks.