If you asked anyone what the meeting was about most didn't have a clue. Why? Borrrring. One time the C.O. told the brothers flat out their talks were boring. Why? They were all based on the same old W.T. rehash. I remember one brother who came to give public talks who was a teacher. His talks were super-interesting. One time he brought a few worldly books onto the platform and read a few lines from them. He got into big trouble for not keeping to his W.T. edited outline and not long after was taken off as an elder.
I always noticed that most people parked their bodies at the hall and allowed their thoughts to wander. So promoted thinking... sure... promoted thinking about other things.