Zero Worlds · claim ZW-C503 · Observation rung · Distinctive predictions

Müller's framework yields in-principle-distinct answers, differing from world-based physical theories, for exotic first-person scenarios — observer duplication, teletransportation, simulation shutdown, Boltzmann brains — none of which is currently accessible as an ordinary laboratory test with publicly comparable outcome frequencies.

Not featured in the current editionAI-extractedorigin: Müller 2026 (Foundations of Physics 56:11) abstract and aid exposition; ZW research report's 'theoretical discriminators' framing

source anchor

Müller 2026, Foundations of Physics 56, article 11, abstract

Evidence

Qualifies· moderateZW-E002

Müller 2026: the two-postulate formulation, and quantum reconstruction named as unfinished

what the source states: The Foundations of Physics paper reformulates the framework as two postulates (Self States; State Change), argues that persistent enigmas — the Boltzmann brain problem, extended Wigner's-friend scenarios, Parfit's teletransportation paradox, the simulation hypothesis — stem from asking "what is the case?" instead of "what should I expect to experience next?", and treats the genuinely quantum reconstruction as an explicit open research target, contrasting the framework with operational setups in which agents are already assumed to be jointly embedded in one physical system.
what we infer: Filed as "qualifies" deliberately: the same paper that gives the framework its cleanest statement also concedes, from the inside, that the quantum bridge is unbuilt. Both facts should travel together — this is the proponent doing what the MPI case's proponents did in "Nailing Jelly": publishing the limitation.
limitations: Characterized from the arXiv abstract (2412.02826) and the author's exposition; the Springer full text sits behind a redirect wall and was not retrieved this run.
Added 2026-10-22: the paper's conclusions have since been read from its open arXiv copy and are quoted in ZW-E023, which states the quantum test and the open problems in the author's own words.

Müller, M. P. (2026)AI-verified citation

Supports· moderateZW-E021

McQueen & Müller: both sides agree the framework's probabilities cannot yet be tested by repeated, shared experiments

what the source states: The critic (McQueen) argues: "The state transition postulate is therefore not well-defined: there appears to be no good option for spelling out what the probabilities are probabilities of" (p. 13). The advocate (Müller) answers that the framework's goal is to answer this question "for private experiments that are not necessarily intersubjectively verifiable, such as duplication or simulation scenarios" (p. 14). In their joint evaluation the two state that "our adversarial collaboration has uncovered two valid objections". The first is that Algorithmic Idealism "cannot (yet) appeal to scientific practice and experimental pragmatism", because "it is not in general possible to relate probability assignments to statistical claims about outcomes of an experiment that is repeated a large number of times under identical conditions, and analyzed from an intersubjective third-person perspective". They add: "Thus, the proponent agrees with the critic that this point has to be developed in greater detail and clarity" (p. 18).
what we infer: The framework's author concedes in print the point ZW-C503 makes: its distinctive first-person predictions do not yet connect to repeatable, publicly comparable frequencies. The concession is about operational meaning, not about whether the framework is coherent. Neither author says the postulates must change. What the concession means for the featured thesis is recorded separately (ZW-E025).
limitations: An unrefereed preprint by two authors; 'valid objection' is their joint characterization, not an outside verdict.
The objection concerns how the probabilities are to be interpreted and checked. It does not show the framework's theorems are wrong.

McQueen, K. J. (2026)AI-verified citation

an honest empty state

This claim is in the ledger but not in the current edition's featured set. Nothing here has been assessed — that absence is information, not an oversight.

Still missing: plain-language gloss, credibility assessment, diagnosticity assessment, strongest objection, what would change our mind. A claim gains them when an edition features it and the edition's adopted assessment supplies the full treatment — a decision the panel reviews, not a field anyone flips.