Wish I knew. Individuals can grow with dialog, but if posters here have already made up their mind that they are correct, it is a tough nut to crack. Comes with experience I guess.
Not everyone walked away from the crash with the same disposition that they had beforehand. Many react to 2da as if he went through a change of religion and abandoned the "true faith." I always welcome his views even when I don't agree because I do realize he is looking for the truth which is rare quality indeed. Sometimes we think we see truth even when it isn't there much like a neutrino having and loosing mass in an instant.