Quote:
Originally Posted by Quoth
There is no sharp division.
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You're right. But there is a division in my mind. To me, time travel is fantasy. But FTL is only highly improbable, as far as we know. Both of them serve to put the story in a desired locale, or are necessary to the plot for some reason. These days people are using the many worlds hypothesis the same way. Somewhat "scientific" and completely fantastic.