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The most exciting phrase to hear in science, the one that heralds new discoveries, is not "Eureka" but rather "Hmmmmm...that's funny" - Isaac Asimov 1920-1992
Visually impressive, at first glance, but ultimately, not marketable enough for more production...
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''illigitimi non carborundum...''(i.e.: don't let the fatherless (self-deluding,sabotaging, long-term-memory-impaired, knee-jerking, cheap-shotting, mono-syllabic, self-annointed, shadow-lurking, back-biting, off-topic-inquisitors) grind you down...)
What they're showing us is the strictly smoothly-paved-riding-surface, street-legal, version...
The Avatar-plausible-version would have to be more of an off-road, mountain-bike, type that would have to be further-modified for jungle conditions...
...and further made suitible for ten-foot-tall, really skinny, blue-riders, in order to be marketable to the indigenous species on Pandora...
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''illigitimi non carborundum...''(i.e.: don't let the fatherless (self-deluding,sabotaging, long-term-memory-impaired, knee-jerking, cheap-shotting, mono-syllabic, self-annointed, shadow-lurking, back-biting, off-topic-inquisitors) grind you down...)