Sorry, I kind of assumed you were struggling with “I want to improve my diet by replacing carbohydrate calories from skim milk with fat calories from whole milk”. The point I was trying to make is that preferences are malleable things, and when you don’t care as much about the cost of changing them as compared to the benefits of having ‘better’ preferences, you can go ahead and change them.
Sorry, I kind of assumed you were struggling with “I want to improve my diet by replacing carbohydrate calories from skim milk with fat calories from whole milk”. The point I was trying to make is that preferences are malleable things, and when you don’t care as much about the cost of changing them as compared to the benefits of having ‘better’ preferences, you can go ahead and change them.