lifo/docrails — comment on commit 3ca269674f66558f6ced4d956ecae4959dacd596
File: railties/guides/source/active_record_querying.textile line 202
By mhutchin:

The biggest problem with the original was that it didn't even explain what was so "inefficient", "underperforming", and "plain impossible" about the example and approach cited. This is a very important point in the guide, since we need to explain 1) why these two methods are even necessary, and 2) how the regular find method works so we can contrast that with the find_each and find_in_batches methods. Yes, it is a little longer, but, it conveys the necessary information.

As Einstein said, "Make things as simple as possible, but not simpler."