1) There are no windows. Gamblers have no idea whether it’s light or dark or sunny or rainy outside.
2) There are no clocks. Dealers are forbidden from wearing watches. Time becomes meaningless."
The guy who wrote this fell into most of the myths and trappings about casinos. Most of his points have been debunked previously or by his own readers in his comments section.
Read the article at 37signals.com. Make sure to scroll down to read all of the comments and check out the links. The comments are far more interesting than the article.
The article was originally found on Digg.com. Check out the Digg comments here.