acinteyyo wrote:I know that "something which depends on something" is a sankhāra, because it's an sankhatā dhamma. So since viññāna depends on nāma-rūpa and nāma-rūpa depends on viññāna, they're both sankhatā dhammā, so one could also say instead of going back to nāma-rūpa from viññāna that it all depends on sankhārā, which finally depends on avijja. But I'm in doubt about that... Is this how it could be understood?
I would say so.
As someone pointed out in the other topic, that aspect is just not the specific focus of that individual teaching. Just because part of the Dhamma is not included in any one particular Dhamma talk or sutta, does not make it false. If everything was in a single sutta, that's all we'd need.