Object/Relational Mapping is the Vietnam of Computer Science

Let me add myself to the multitude of people who found this enlightening:

"Object/Relational Mapping is the Vietnam of Computer Science. It represents a quagmire which starts well, gets more complicated as time passes, and before long entraps its users in a commitment that has no clear demarcation point, no clear win conditions, and no clear exit strategy." -- Ted Neward