Here I am writing on the concern of the advancing technology in the Avatar universe. If you have seen A:TLA you would know that a lot of the technology can be advanced, like airships and tanks, but there are also a lot of ancient looking elements to it as well.
In The Legend of Korra, in a matter of 70 years the tech had advanced dramatically from what we saw in A:TLA. What we have in TLOK would be something a lot like 1920's or so in terms of the technology they have. Now, assuming they make another series aftet TLOK, how would it be?
This is concerning because it would seem if you got into modern tech, it would ruin the feel of Avatar. Something about me says that jets, modern cars, and rocketships wouldn't fit one bit into the universe, but it is clearly evident that the tech is advancing, like the introduction to the planes we saw.
Who knows, maybe TLOK is the end of the Avatar universe, but think, if they DID have modern technology, WOULD it ruin it? Comment on what you think.
EDIT: You guys have points, it is a lot like the human world in terms of advancements, but then again they utilize their technology in different ways than us, for example, the turrets on the battleships.