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NOVA's computer-graphics wunderkinds combined with Greene's brilliance at explaining concepts that would normally make your head explode bring surprising clarity to ideas that contradict common sense at every turn. Empty space, for example, isn't really empty, and it isn't just a passive container in which galaxies and planets and light beams move around: it warps and undulates; it stretches and squeezes; it crackles with its own invisible energy that affects everything within it. Time, meanwhile, doesn't necessarily flow from what-was through what-is and toward what-will-be. It may not flow at all: past, present and future could all be right here, right now it's just our perception, plus the laws of thermodynamics, that make it seem some other way. And by the way, what we call the universe may be just one of a zillion parallel universes, some like ours, some totally different, but all of them eternally cut off from each other. The…seamless special effects makes a far more powerful impression than some old-fashioned diagram or animation could ever do.
