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PREDICTING HUMAN BEHAVIOUR WITH COMPUTE

Reddit r/QuantumComputing (RSS)
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⚡ Quantum Brief
A Reddit user proposed simulating human decision-making at a fundamental physical level, framing behavior as deterministic interactions of matter, energy, and probability, using examples like emailing a professor for a grade adjustment. The post questions why no computer exists to model such complex systems, citing challenges in capturing biochemical, cognitive, and social feedback loops that define human adaptability. Fundamental limits—computational, epistemic, or quantum—are debated as potential barriers, even in theory, to achieving perfect simulation of stochastic human behavior. Current approaches like probabilistic cognitive architectures, neural networks, and physics-based brain simulations are highlighted as the closest existing methods, though none fully replicate human decision-making. Inspired by Devs, the discussion shifts from narrative to practical constraints, seeking insights from experts in quantum simulation, computational neuroscience, and stochastic modeling.
PREDICTING HUMAN BEHAVIOUR WITH COMPUTE

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Here’s a thought experiment I’ve been playing with: Suppose I want to ask my professor for 1% so I can pass. From a strictly physical perspective: I contract muscles, fire neurons, and type an email.Electrons move through servers and screens, altering the atomic states of his computer. Photons hit his retina, neurons fire, and his brain state changes. That cascade ultimately causes him to make a decision: approve, deny, or ignore. In other words, my action is matter, energy, and probability interacting, producing a final observable outcome. I’ve considered applying Monte Carlo simulations and game-theory models to optimise the odds, treating his behaviour as a stochastic system. But humans are highly complex, adaptive systems with layers of biochemical, cognitive, and social feedback. My question for this community: - Why haven’t we built a computer capable of simulating human decision-making at this level of physical determinism? - Are there fundamental limits (computational, epistemic, or quantum) that make this impossible, even in principle? - What current approaches come closest ? e.g., probabilistic cognitive architectures, neural networks, or physics-based brain simulations? I’m aware this is heavy on determinism. I recently watched Alex Garland’s Devs and it explores similar ideas, though I’m asking more about practical simulation and limits rather than narrative. I’d love to hear perspectives from people familiar with quantum simulation, computational neuroscience, or stochastic modelling. [edited to refine diction] submitted by /u/readmymind_ [link] [comments]

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energy-climate
quantum-finance
quantum-simulation

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Source: Reddit r/QuantumComputing (RSS)