Strange matters: Undiscovered ideas at the frontiers of space and time [Book Review]

Abstract

For almost 30 years, physicists have been facing a long haul across the almost interminable desert to the grand unified theory (GUT) of strong, weak and electromagnetic forces. This theory postulates an almost unimaginably huge gap between the energies of current particle accelerators and those at which the manifestations of unification become most apparent. If that’s not sufficiently daunting, string theorists have speculated further, suggesting that gravity is tied to the other three interactions at an even higher energy scale.