Talk:Fire Nation train/@comment-1533301-20120129151508/@comment-5179242-20120613184235

It does bring up a lot of new questions about the Avatar World, such as how technologically advanced they really are. I'm not sure if in the series they were in a steampunk era. If they were, why did we never notice? I've never seen any cars, planes, or machine guns in the Fire Nation Colonies...

But your theory still does make sense.