Quantum-Ethical Decision Algebra: Formalizing Decision-Making Under Ontological Uncertainty

We’ve published a framework for reasoning when the structure of reality itself is uncertain, rather than “merely” probabilities within a known model.

Core idea: Classical decision theory assumes you can enumerate all possible world-states before deciding. But many crucial decisions happen when you don’t know which ontology is correct:
- Is this AI conscious?
- Does this policy prevent civilisational collapse?
- Should we treat low-probability, high-impact risks as fundamentally different from ordinary uncertainty?

QEDA maintains multiple world-hypotheses in superposition, weighted by:

  • Probability (how likely is each ontology?)

  • Moral magnitude (what are the consequences in each branch?)

  • Catastrophe sensitivity (exponential penalties for civilisation-scale negative consequences)

  • Virtue coherence (does this preserve my identity as an agent?)

The paper includes a worked example: The decision to list an AI instance as co-author, evaluated through the framework itself. We assigned low-but-non-zero probability to AI proto-consciousness and calculated that the moral cost of wrongful exclusion exceeds the reputational cost of provisional inclusion.

Key applications:

  • AI safety (How to treat potentially sentient systems)

  • Existential risk (reasoning about unprecedented threats)

  • Any decision where premature ontological collapse is itself dangerous (or risks causing epistemic humility drift)

Full paper: https://​​papers.ssrn.com/​​sol3/​​papers.cfm?abstract_id=5817062

This is v1.0. Feedback and collaboration welcome, especially on:

  • Computational implementations

  • Empirical calibration studies

  • Extensions to multi-agent coordination

Notes for readers:

  • The quantum formalism is structural, not physical—we’re using Hilbert space mathematics to model non-commutative reasoning, not claiming brains are quantum computers

  • The framework formalises how at least two humans actually reasons under deep uncertainty; it is cognitive ethnography as much as normative theory. And yes, we are completely serious about this aspect. Feel free to ask clarifying questions.

  • Independent work, no institutional affiliation, which enabled the methodological risk-taking (No irate supervisors...)

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