Goldberg, Dave. "Time Traveling For Dummies." Slate. 13 Aug. 2009. http://www.slate.com/id/2225223/
In this article, Dave Goldberg explains the concepts and limits of time travel in Hollywood movies, primarily in the new movie The Time Traveler's Wife. Goldberg breaks the article into 4 different sections and he titles them (1-4) "This is the only universe you've got," "You can't visit any time before your time machine was built," "You can't kill your own Grandfather," You don't have nearly as much free will as you think you do." In each section, he gives us information on time travel such as you can't go back in time further than the time the time machine was invented because you won't have a way back because the time machine hasn't been invented. Because of this rule, it prevents tourists from the future to be in our time.
I really thought this article was interesting because every time I see a movie or show based on time travel, I just think in my head why doesn't the time traveler just go back in time and kill the bad guy. Goldberg explains this rule in the "You can't kill you own Grandfather" section. He says, "So, try as you might, you can't kill your own grandfather, nor can you change history at all. The Terminator learned this the hard way, going back in time to prevent John Connor's birth by killing his mother. When a human travels back in time to protect her, the two fall in love—and she becomes pregnant with … John Connor. Ta-da." Maybe next time I see something on time travel, I will be able to point out the correct parts and the mistakes.
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