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<blockquote data-quote="TwinBahamut" data-source="post: 5482005" data-attributes="member: 32536">To help your argument even more, FTL communication in Ender's Game is even more a product of plot device more than physics. Combining sub-light travel speeds with FTL communication should result in almost accidental violations of causality as messages get transmitted backwards and forwards through time because of relativity, but that possibility is never even addressed in the book...Far too few people truely understand the ideas of relativity enough for FTL travel to be anything but a plot device. The simple fact that most sci-fi works make FTL travel out to be easier than time travel is proof of that, when half the point behind the idea of a light speed barrier is that FTL travel is time travel according to relativity.Of course, there is nothing wrong with total plot devices in Science Fiction. They make things fun. But it does do a lot to create problems for big charts of future technology...</blockquote>

[QUOTE="TwinBahamut, post: 5482005, member: 32536"] To help your argument even more, FTL communication in Ender's Game is even more a product of plot device more than physics. Combining sub-light travel speeds with FTL communication should result in almost accidental violations of causality as messages get transmitted backwards and forwards through time because of relativity, but that possibility is never even addressed in the book... Far too few people truely understand the ideas of relativity enough for FTL travel to be anything [i]but[/i] a plot device. The simple fact that most sci-fi works make FTL travel out to be easier than time travel is proof of that, when half the point behind the idea of a light speed barrier is that FTL travel [i]is[/i] time travel according to relativity. Of course, there is nothing wrong with total plot devices in Science Fiction. They make things fun. But it does do a lot to create problems for big charts of future technology... [/QUOTE]

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