Have you ever known someone to decide "Let's not take the car this time, it'd create too much congestion for other people"? Because that's a different cost, in

Have you ever known someone to decide "Let's not take the car this time, it'd create too much congestion for other people"? Because that's a different cost, in amount and not just in who pays, from "With the traffic it'll take us 5 minutes longer than usual". You're not getting the negative feedback of your own decision here either; it's an increment like how when the CO2 goes out the tailpipe, the air right around you the driver is for you personally a little worse. Of course reality is more complex than a toy model. I brought up the simplest model because your objection seems to me even cruder. People are not generally Hofstadter's superrational agents directly overcoming game-theoretical equilibria in prisoner's dilemmas with a million strangers.