20happyballs on 29 November 2012
Knowing that it took 12 months to make a 4 minute demo doesn't reveal anything. There are far more factors that need to be considered.
-How many people were working on it? 5 or 50+? That makes a huge difference.
-Was the team given 12 months to complete the project? If so, then I don't see why they wouldn't use that whole time to continuously work on improving the demo.
-How long the video is doesn't mean anything. The demo includes numerous art assets. Probably enough for a whole game level or world in which you could spend countless hours in.
