DM was nowhere near stable during the original development of ARel. O/R Mappers are difficult. The more ambitious, the more difficult, and DM is very ambitious

DM was nowhere near stable during the original development of ARel. O/R Mappers are difficult. The more ambitious, the more difficult, and DM is very ambitious. ;-) I can say it had absolutely nothing to do with ego. There was a actually a point ARel was seriously considered as the basis for the DM query API.