What is so funny is that so many people have taken it as holy writ. And people are getting all hot and bothered about it. Somebody saw a screenshot and did not see anything indicating the familiar Civ 4 concept of multiple units per tile or "stacks." He inferred that stacks must not exist in Civ 5. Even if you accept the premise that this game is very similar to Civ 4, this is not a valid logical inference - it is an appeal to ignorance which is fallacious. Given what we know, there is no justification for believing his conclusion is true.
We don't even know if the concept of a unit exists in the game. For all we know those formations of soldiers we see in the screenshot are generated for a special "battle event" based on the warring civilization's technology level, productivity and other factors. Maybe you fight one such battle per turn while at war and never interact with "units" in a traditional sense otherwise. The amount we don't know about this game is staggering. We don't even know that the game is turn based.
Let that sink in.
We don't know if this is a turn based game. I think it very likely is - no reason for Firaxis to jump genres on us - but they haven't actually told us that it is as of the date of this post.
"One unit per tile" is the most egregious example of this type of thinking so far, but it is not the only one. The idea that religions have been removed from the game is also floating around, as is the idea that there are no longer any civilization traits, and some other zany facts based on idle speculation or poor reasoning skills.
I predict this will happen with every substantial press release from 2K about this game. Any of these "facts" about the game such as "no religions' and "one unit per tile" that are contradicted will fall into obscurity and be ignored, with the occasional new forum goer who hasn't seen the new press releases reading them and getting confused, then bringing them up and being called a n00b. Anything that isn't contradicted will be considered confirmed (yet another kind of fallacious reasoning) and treated as true until it is contradicted in a future press release or the game release. Meanwhile, any new information that comes out will blossom into a whole new field of speculation like daisies in




.
Basically this entire sub-forum is one giant critical thinking FAIL. The only thing we know about civ 5 is that the world map is divided into hexagons rather than squares and that Washington and Bismark are returning in Civ V. We have also seen examples of the graphics for the world map and diplomacy screen. That's it. I'd like more info, but I don't have it.