"Max Tegmark leads us on an astonishing journey through past, present, and future, and through the physics, astronomy and mathematics that are the foundation of his work, most particularly his hypothesis that our physical reality is a mathematical structure and his theory of the ultimate multiverse. In a dazzling combination of both popular and ground-breaking science, he not only helps us grasp his often mind-boggling theories (his website gives a flavor of how they might boggle the mind), but he also shares with us some of the often surprising triumphs and disappointments that have shaped his life as a scientist. Fascinating from first to last--here is a book for the full science-reading spectrum"--

"Mr. Peabody is an inventor, a scientist, a genius, and ... a dog. Using his most ingenious invention, the WABAC time machine, Mr. Peabody and his adopted boy, Sherman, witness world-changing events firsthand. But when Sherman breaks the rules of time travel, they find themselves in a race to repair history--and save the future!"