Yes. The List each above is acting lazily. Here is a better example of how it works: http://news.ycombinator.com/item?id=1627777 http://news.ycombinator.com/i

Yes. The List each above is acting lazily. Here is a better example of how it works: http://news.ycombinator.com/item?id=1627777 http://news.ycombinator.com/item?id=1627777