science was born out of rationalism. rationalism born out of the need to understand the surroundings. necessities brought over creativity, and creativity utilizes science to develop technology.

there are a few things that MIGHT be absent on pandora.

rationalism is something that is not clearly defined. they also have little need more than they already have. just like the tribes in rural areas currently existing in malaysia, australia and much in afrika. we have the technology to help them, but some still prefer to live in their old ways.

imagine if an alien landed in afrika (and did not come in contact with other parts of the world), they might assume that earthlings are just as primitive as we see the na'vis .

this have been discussed before.

superman have the ability to alter the state of those he comes in contact with. this allows him to snatch a person in split second without suffering from concussions or whiplash effect. this is also the same ability that allows him to bring another person to fly with him.