Enjoyed the topics and I enjoy how it's written. Mr. Kaku has the gift of explaining complex and abstract ideas in a way that make sense to me.

This book is amazing, it is different from other books on this topic, because the future technological advances that are mentioned are based on prototypes that exist today. Overall great book.

Choke-full of Science Digestable by Everyone

As a "happy" atheist, I wish the author would have addressed how science can advance without religion. I am convinced that humans obsession with deities and religion are a major roadblock to the advancement of science and our species' advancement. Thank you "The Happy Atheist"

Simply fantastic

Thank you michio kaku for another wonderful book.

the book has many erors in it some pages jumps to other .unreadable. dowloaded many times nothing changes

This book was very disappointing. I expected a scientifically based extrapolation of where we would be in 89 years. Although the author does this to a credible extent for the next 39 years, he begins to depart from a scientifically based prediction and devolved into a rambling, internally inconsistent view of the world in the latter 1/3 of the book. Anyone who is reasonably well read on scientific issues (I.e., who reads the Science Times each week), will learn little and be very frustrated by this book. If you fit this category, don't buy it.

Shows you how the futcher will look if we only stop our childish behaviors

The recap comparison of a paper dated 1900, left me, completely, understanding this authors demographic based view, even in quoting someone else, sadly. Ok book otherwise.