[Ilander]

Draw distance is how far you can see, specifically how far the game renders the environment before the fog inherent to all games covers the unseen, so as to keep from having to scale infinitesimally all the objects in the game.

To be honest, though...it's a somewhat realistic thing, though highly exaggerated in games. The clearest parts of the atmosphere in the world don't allow a person to see things more than 80 miles away...on flat ground, where the distant objects are tall enough for the earth's curvature to not conceal them...in the Ohio River Valley, home for me, on humid days, hills 1 mile away appear hazy and it's difficult to make out details...