Originally Posted by marcvader
Tesseract is an earthly name.
Completely not the point. The point I am making, is that The Other, a being who is probably at least 1,000 years old, referred to it as "The Tesseract". I don't think he called it that just because the humans call it that. According to The Other, and Thanos, the cube is called the tesseract, and due to their age, it has been called that for a long time.
So, again, how people of earth learn the "correct" name of it?