Yes, I ate the marshmellow, but I lived to tell the tale

I had heard about these studies, but to hear and see this video presentation by Joachim de Posada is a joy.

And, I have a story of my own to tell, which I remember whenever these kinds of issues come up (see video). I was spending a summer on campus, and it was hot. A philosophy nerd who was also there had a cantaloupe. I offered to trade an LP I had for the cantaloupe, which he though was absurd and kind of primitive and (immediate gratification and all that). We made the trade, and I was very happy. And the the philosophy guy never really took it in that I didn't like the LP.