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Am I using this to prepare for a conversation, or to avoid one?
You will know the answer before you finish asking, which is what makes the question useful. Simone Heng, who studies human connection, draws the distinction as a way station versus a destination: a way station is somewhere you pass through on the way to a person. A destination is where you stop. The person who rehearses a hard conversation with AI and then goes and has it does better. The person who has it with the AI instead does worse. Same tool, same afternoon, opposite outcome.