Quote:
Originally Posted by maskedmelon
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It's not just space though, it is space-time. Einstein described the relationship. However, space were nothing it wouldn't be space ^^
Two-thirds of the universe is composed of dark energy, which we really do not understand and string theory suggests the universe has 11 or more dimensions. We have thorough understanding of three of those and a shakier understanding of the fourth. Given that there could well be (and likely are) many other dimensions, which we are thus far unable to perceive, it would be irresponsible to assume space is empty ^^
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Absent a connection of this kind, one is doomed to become just another cog in an endless fruitless ideological argument about whose quantum theory of gravity is better (or at least, whose sucks less)
Most string theorists are interested in string theory not as a theory of quantum gravity, but because of applications of ideas that have emerged from string theory to other fields (e.g. AdS/CFT).
While connecting string theory to experiment is hopeless, it deserves investigation purely as an idea about quantum gravity. NOTHING MORE