I know this may sound stupid, especially comming from me, but I really want to ask it, so don't laugh!!! Yesterday (I had the day off), I went to IAD to take pictures. I went around 2. The airport was almost lifeless. No one was in a rush, nothing was happening real fast. So I waited (not many planes were there). I went to the screen. Almost all the flights were taking off between 4:15pm-5:55pm. All of the sudden, (at 3:35pm) the bulding filled up, along with most of the gates. Why would any airport want to do this. Wouldn't the smart thing be to spread out the flights so it is not so crampt and hectic?