Davisaurus

I think Mart and Locian are getting a bit carried away. Suffice to say that given our limited time of observational data, we can only project time forecast theories regarding cosmology by using observations in our universe at different distances and thus different times. I don't think anyone would say this model is guaranteed to be 100% accurate. However, short of waiting around for another 14 billion years, it is the best model that we can use. So Mart, We can all see you in 14 billion years, and you can tell us whether the predictions using the existing models were reasonable assumptions. Till then we can all agree that there are no other models we can reasonably use. Back to the topic at hand: I guess I would call myself a speculative physics geek. So when confronted with the concept with a universe expanding at an increasing rate, I began to speculate. Everyone in the science community seems to think it is some sort of exotic 'dark matter' which no one can find. I think I have a simpler solution. I read back in Scientific American a few years back about theories of infinite universes. One theory describes space-time as infinite in all directions. The speculation is that local universes burst into existence like bubbles in the bottom of the pot of boiling water. Randomly throughout spacetime. This means that in any direction at a sufficient distance is another local universe expanding similar to our own. These universes exist so far away that most would die a cold death before their expansion ever brought them into contact with each other. Now assume that their are huge massive UNIVERSES, not just galaxies or stars, extremely far away in every direction. The gravitational pull of these universes, because of their astronomical masses would not be negligible despite their distance. Since they exist in all directions, the net effect should be to pull our universe apart at an increasing rate in every direction. No mysterious dark matter required. Comments?