...in the latest example of logic-defying tricks that physicists can now perform with light, Dr. Boyd and his colleagues demonstrated an optical fiber — a glass strand that transmits pulses of light — with a couple of odd characteristics:
-A pulse of light shot into the fiber departs before it enters.
-Within the fiber, the pulse travels backward — and faster than the speed of light.
Perhaps most amazingly, Dr. Boyd's results do not violate any law of physics. The effect is indeed predicted by the equations describing the propagation of waves.
"This is a good example of something which is very counterintuitive that the laws of nature permit," Dr. Boyd said.
This, obviously, has huge implications for the field of intercessory prayer. If we start praying really fast, maybe Constantine won't have united church and state.
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