Oh, could you do me a favor and pass the hot sauce? Sure. Thanks. Can you do me a favor? Sure. My cousin’s coming in tomorrow at 6:00 AM. Can you pick him up at the airport? 6:00 AM, you want me to pick him up? Well, I scratch your back, you scratch mine. Passing the hot sauce and picking your cousin up from the airport at 6:00 AM are very unequal favors. All favors are created equal. Not in the favor economy. What if I were to trade you a pass the salt favor for a give me a hundred bucks favor? Okay, well how about this, I’ll level up my side of the favor. I gave you the hot sauce, plus 50 bucks. Now you pick up my cousin at the airport, that’s fair right? Okay, yeah, I’ll do it. Can you pass me a napkin? Sure. Thanks. And can he stay at your place?