Books by Sean M. Carroll

And Sean Carroll, The Biggest Ideas in the Universe: Space, Time, and Motion .

That is the new, interesting, and engaging book by Sean Carroll .  Some of it is exposition, the rest argues for a version of Many Worlds Theory, but with a finite number of universes.  Here is one excerpt:

The author is Sean Carroll and the subtitle is The Quest for the Ultimate Theory of Time .  This book-to-appear offers a very good summary of the paradoxes of time.  The new contribution (new to me, at least) is to offer an integrated discussion of the multiverse, the law of entropy, de Sitter space, and the foundations of the so-called "arrow of time."