Multiple Earths

Okay, so the first thing I'd want to cover would be Clifford D. Simak's Ring Around the Sun.
Steven King owes a lot to Mr. Simak. In this book the theory of mutiple earths is explained that there is an infinite number of earth all either a second behind or a second ahead of us. We just don't see them. The story is great in that it shows the use of the multiple worlds and things start being built that last forever. There is also the creation of three two parts to human being that become one when the time is right. That part gets complicated, but King does it in the Wastelands, perfectly by having Roland's mind literally split between having Jake being dead, but not being dead.
More later...