History is full of intelligent people lured down dark alleys--think of the intellectuals who fell for Nazism. The crop of 70s religious charlatans are now largely discredited and forgotten, but we'd be fools to think there isn't more of the same out there ready to exploit young people. The clearest current example is radical Islam, which has fooled a lot of young people into espousing violence and suicide bombing. I wonder if exes have a contribution to make there--some wisdom we can inject into the situation.
But I fear it is very hard indeed to truly learn from the past.
Neville B