Well, I'll still spring for a Coke if I ever see you... :-)
The line between "fantasy" and "science fiction" isn't so much a line as a continuum. At the ends of the continuum (Lord of the Rings) it's real obvious. Stuff in the middle? Not so much. Also, the ends of the continuum keep moving. For example: in the '50s and '60s, there was a lot of SF that assumed psychic powers, like ESP and such. Now that same concept would lean more to fantasy.
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The line between "fantasy" and "science fiction" isn't so much a line as a continuum. At the ends of the continuum (Lord of the Rings) it's real obvious. Stuff in the middle? Not so much. Also, the ends of the continuum keep moving. For example: in the '50s and '60s, there was a lot of SF that assumed psychic powers, like ESP and such. Now that same concept would lean more to fantasy.