The REAL story of Avatar is in the ecology

Avatar is worth seeing as a demo reel for state-of-the-art filmmaking technology that will completely revolutionize the industry and will eventually trickle down to independent filmmakers over the next 20 years or so.  The movie was visually so stunning that I managed to more than tolerate a thoroughly mediocre plot.  Lots of people have written about the special effects, the plot, and the issues of race the movie brings up.  My questions is...

So, could a world like Avatar evolve?

The conclusion is very surprising. 

( Very minor spoilers and a lot of fun speculation )