Tram of Thought: Comic strip about psychology, philosophy, society, engineering, and just life in all its gory glory

Economy

Caption: Money, explained. On the first image, three Triangle-people are shown: white, having a piece of meat and wanting a hammer. Blue, having a hammer, wanting a saw. Green, having a saw and wanting a piece of meat. None of them can exchange directly, but the green person spots a flower, which they exchange for meat with the white. Then, white exchanges the flower with blue for a hammer. Then, blue exchanges the flower with green for a saw. Finally, all three are shown holding the items they wanted, with the flower discarded on the ground.

[translator: Image edited.]

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