Okay, so given the obvious limitations that Kahneman's prospect theory really sheds light on, what are some of the insights that SSLD can bring to the table? >> I think the key question that we would raise is the whole idea of value. In economics, you have like a set of standards to determine what value might be, like the market determines the value of a stock. But then in interpersonal relationships, that doesn't really work that way. One of the things that I always use as an example when I'm teaching my face-to-face class [LAUGH] is bringing gifts on Valentine's Day. Let's suppose that you have a couple, they started dating and this is the first Valentine's Day. The guy spent $100, bring some flowers and chocolate. The woman was delighted and then she would be talking to her friends and showing it off to people at work or whatever. So that gift carries a certain value, and the excitement generated is maybe extremely valuable to this person. And then the guy would also feel very gratified when he gets feedback from the woman with regard to like how much she enjoyed receiving that gift. So let us go like two, three, four years down the road, right? Inflation and everything kicked in, maybe the guy, this time, spent $200 on similar gift. And well, even with inflation, if you're spending $200, this would be a better looking bunch of flowers and chocolates. But we're not sure that the value that is experienced by the woman would have gone up by almost 100%, >> right Or 50%, or 30%. I think there is a very good chance that the overall value would be less than the first time when it was experienced, right? Even though they were only spending $100 back then. So what the subjective experience of the value, or like some economists would call this utility, right? Does not actually bear a simple relationship to the monetary market value of something. So that actually would give us a lot of insight when we are looking at the arithmetic of love, so to speak, in any relationships. Another important point that I want to emphasize, coming from a SSLD perspective, is that what is being valued varies from person to person. Like someone who grows up with like privilege and easy access to material resources may not value material stuff that much. But this person may, for instance, value autonomy because my parents are rich and powerful. They're running my life and I'm well furnished with whatever I need, but I really would love to have more space for myself, right? So that person would value this more. But then, for someone who's like raised in a sort of a relatively deprived environment, then some of these material goods would carry more value for him or her. You know, this is something that I always wished to have, but didn't, right? So when we look at value, we have to pay attention to individuals. And then the other thing that we always talk about, obviously, in SSLD is like because our needs do change, right? So what we value actually would change as our needs change.