When was the last time you changed your mind about something after reading a book or article or listening to a debate? Explain what happened.

I read an article on how head head to head hits in football need to be taken away in the NFL because of how dangerous they are. I used to think it was a part of the game, and players shouldn't get fined for big hits. Now that I read that article I changed my mind, I agree with the fines these players are getting. This is a big topic in sports right now, and it doesn't seem like fines are making any change at all.