Last week, TV audiences boggled at one of the best Lost episodes in recent memory, where a character traveled through time guided somehow by his conscience. The twisty turns in the episode may have been surprising, but not nearly as shocking as what I'm about to tell you. The scientific basis for the time travel scenario in Lost is actually sound. An actual, practicing physicist told Popular Mechanics that the episode included several details that fit with what theoretical physicists think would be involved in timeskipping.
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