 Because sometimes when you learn new things, but they are trying to pile up on top of old things that should have gone. It's like operating a device with an app open in the background and you don't know that. You just know that it's not working right and the battery's been drained in a shorter time than it should be. Because you have these apps running in the background is what old things are like that should have been unlearned a long time ago. I think the other thing I want to say to you guys about unlearning is that unlearning is more difficult if you really love and appreciate and admire those who taught you it.