several times that MDT agrees 100% with all of relativity. Does this mean that MDT hinges on relativity being 100% correct? If the answer to that is yes - then sorry, but If you remember my essay you know I will have to reject MDT on that basis. I will post this on your blog as well so you can answer there and not here. That way we can adhere to the FQXI rules of not discussing your theory here. Thanks. Oh, and I completely agree with your take about time travel, strings and all of the other "beam me up, Scotty" stuff that physicists are putting in their books to sell to the wanabees. They have become heroes to the stupid and laughing stocks to those who know better. What an empty reward! My point to you still stands. You are very right that physics has misinterpreted Einstein and projected time out as this block time fourth dimension. But that's Einstein's idea and while you may support it, you need to extend it somewhat and not just tilt at the establishment. They don't care because they can ignore you. What you describe as the fourth dimension is effectively known as the cosmological constant. That balance to gravity. Gravity is the contraction of those three dimensions of space and so light/radiation expands in inverse proportion. If you want to put it in the context of time, mass is formed and eventually disintegrates. It goes from beginning to end, as its