Pomona put the coffee grounds into the moka pot, set it over the fire to heat, then stared at it blankly.
Water turned into steam when heated, but compared with the Philosopher's Stone, she was more concerned with the Resurrection Stone. It had once served as the setting on the Gaunt family's ancestral ring, and it had obviously been bought by the Gaunt family from the Peverell family or acquired through some other channel.
Dumbledore loved playing Wizard's Chess... Before game theory emerged, economists studied economics only through mathematics, prices, market factors, and the like. They rarely analyzed it from other angles—for instance, fiercely competing businesses always opened near one another, and there would inevitably be other cafés near a famous one.
In Kant's example of the pawnbroker, the owner considered that if he underpaid an inexperienced customer, rumors would spread, damaging his reputation and making it difficult to attract business afterward. That was thinking based on repeated games. If people were engaged in a one-shot game that would not exist tomorrow, most would be inclined to deceive and betray. For example, in the film Casablanca, when the heroine met Rick, the café owner, she concealed the fact that she was married and fell in love with him. Then, on the eve of the Nazi occupation of Paris, after learning that her husband Viktor had escaped from a concentration camp, she immediately left the man who had comforted her.
Then, in Casablanca, she met Rick again, and their old feelings soon reignited—the prerequisite being that Rick had two passes to America.
Did she truly love Rick, or did she love Viktor more?
She probably had never expected to meet Rick again, just like countless men and women who pretended they were unmarried, then went their separate ways after a brief