Some parts of the brain are walled off and for good reason. You can't have a version of terminal for the brain. It's too important. Otherwise, you know you'd end up ruining your brain. And so there are all these things that are walling off against other people but also against ourselves to prevent ourselves from fooling around with the way our minds work. The more important they are to us the less editable they are. This is why this problem is so hard because these are so important,. We can't take the risk of letting other people in and screwing around with these important beliefs and knowledge structures that we have.