What do you mean how do I know this? Didn't you read the extensive description of the black spikes? Or the way Rand's mind was warded from them?


How? We have no idea of the methodology. If we do, I'd like to see a quote for it.


But a very critical variable had changed. The taint was no longer around when Nynaeve healed Naeff.


Of course yours is contradicted. Because those Aes Sedai were unable to Heal madness at a time when the taint was around.

Here's a better analogy:

Say a person is in a room filled with a poisonous gas. You know how to treat the inhalation of the gas, and you administer it to this person. The moment you treat, he will immediately breate more bad air and regress again. So you can only give him a few moments of life.

Then, someone removes the poison gas. And I go in and do what you did, only now the man lives on since there is nothing poisoning him after treatment. We're doing the same thing, but having different effects.

You're saying Nynaeve and the older AS had to be doing different things since there were different effects. But you're completely ignoring the one major thing that is different: the taint.