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What if you opened Burger King in Ancient Greece? On the first day, you set up an iron grill right in the middle of the Athenian agora. Socrates walks up, brings a folding chair, says nothing, just sits next to your stand and watches. You ignore him and start cooking a burger. You place a thick beef patty on the grill — it sizzles loudly, and the smell of meat on fire spreads across the market. People around begin to turn their heads.