@Olivier5,
Quote:Never saw it happen. In my experience, these things (belief, unbelief) are like an epiphany: they dawn on you, or they don't
If you Googled 'Atheists who became theists' I'm sure you would find an example.
The debate itself may not be responsible for the change, but it encourages more reflection which in turn can become that epiphany.
I'm sure the reverse is also true if you were to Google 'Theists who became atheists'.