“Professor and distinguished sf writer Benford adds another reflective title to his large and rapidly expanding oeuvre. Hearty and compelling, his new book elucidates some of the inherent problems humanity faces in communicating over the expanse of time. This slim book addresses environmental issues in order to change how we think about the human impact on Earth; the goal is to make us good stewards. Recommended for all public and academic libraries.” —Library Journal on Deep Time

“Combining the flair of a novelist with the cutting-edge science of a physicist, Gregory Benford tells a fascinating tale of one of the deepest questions human beings can ask: How do we communicate with our distant descendants or with extraterrestrials? I know of no book that combines these ingredients in such a hearty meal for the intellect.” —John L. Casti, Santa Fe Institute, Santa Fe, NM; author of Paradigms Lost and The Cambridge Quintet on Deep Time

“We have no evolutionary basis for thinking rationally about the distant future, and Gregory Benford's delightful book documents our feeble efforts to do so. We feel a sense of responsibility to and for a future far beyond our span, and it will not go away. Deep Time addresses the why and the how of truly deep issues, in a fun read. I know of no other book on this intriguing subject.” —Hal Lewis, Professor of Physics, University of California at Santa Barbara; author of Technological Risk on Deep Time