Our beliefs aren't just cargo that we carry around. They become part of our personal identity, so much so that we feel hurt if we see someone attacking our beliefs, even if the attacker isn't speaking to us individually. These "beliefs" are not necessarily grand things like moral frameworks and political doctrines, but can also be as inconsequential as an opinion about a song.
This post is for discussing times when you actually changed your mind about something, detaching from the belief that had wrapped itself around you.
Relevant reading: The Importance of Saying "Oops", Making Beliefs Pay Rent
After initial success but then several bouts of plantar fascitis, new mystery leg pain and a heaping helping of denial I've finally given on up the minimal shoes thing.
I agree walking around in super comfortable shoes all the time probably makes us puny and weak, but I doubt paleolithic man walked and ran on hard city-grade pavement 50+ miles a week.