I just finished reading Michio Kaku’s book “Beyond Einstein” which although a little outdated was fascinating. After reading Steven Hawking’s books (written for the layman – ha) 3 times which despite my technical background and graduate study in mathematics, left me frazzled, this one was almost a pleasure. I say ‘almost’ because this stuff on quantum mechanics, relativity and superstring theory is so non-intuitive. you have to wonder how these physicists ever came up with these concepts. The latest candidate for unifying everything is superstring theory which claims that once (whatever ‘once’ means) there were 10 dimensions and 4 split off to make up our universe of space-time. I can understand that but I can’t even envision it.