Thanks for the tips, I am always looking for a good book. I have heard and seen those writers, but never explored their writings.<br /><br />I agree with your thoughts on the movie. It had nice content, but I seem to think that if the past was changed, the present would also be different, unless you were insulated from that stream of actions. How could a person have two active past memories in mind, the one would seemingly replace the other. If a person could view those actions from a third person position, that may be possible. <br /><br />Which brings up the thoughts of Marty and Back to the Future. Side note, Chris Lloyd is a fantastic actor. Who else could play the reverend from Taxi, a klingon from Star Trek, and a bum from the flop of a movie called Dennis the Menise? But when Marty went back to 1955 he changed his present state in 1985.<br /><br />That to me seems to be the only realistic course to take. But who can really tell?<br /><br />Has anyone experienced "The Sphere" by Michael Chrichton? Of recent books, that has more twists and turns then most. It has a delightful time twist, and many other turns as well. It kept me to the very last page, and I could envision other threads of action from that end. But DO NOT, I repeat, DO NOT waste your time with the movie. IT IS NOT WORTH IT!!!!