No conspiracy theories here but see "Engineered highs: Reward variability and frequency as potential prerequisites of behavioural addiction" (https://www.sciencedirect.com/science/article/pii/S030646032...). And "The Dark Addiction Patterns of Current AI Chatbot Interfaces" (https://dl.acm.org/doi/pdf/10.1145/3706599.3720003). Intermittent reinforcement is important for addiction.

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