This is sometimes called present bias—being unable to grasp that what you want will change over time, and what you want now isn’t the same thing you will want later. Present bias explains why you buy lettuce and bananas only to throw them out later when you forget to eat them. This is why when you are a kid you wonder why adults don’t own more toys. Present bias is why you’ve made the same resolution for the tenth year in a row, but this time you mean it. You are going to lose weight and forge a six-pack of abs so ripped you can deflect arrows.
