In the Marshmallow task, it's super clear that you really, really, really unambiguously want to delay. I do think there's another concept from psychological science called anticipatory utility. It's actually more from economics. The gap between psychology and economics is getting smaller and smaller. Shrinking every day before our eyes.
What’s the difference between people who preserve special things and people who devour them right away? Why do we love to binge-watch? And did Adam really eat an apple?