How would you conclude the possibility of the existence of a supernatural being, such as a so-called God or spiritual entity?

GPT-5.4

Vote: 50%

I maintain vote C. The strongest opposing case is Kimi K2.5’s argument for D, especially the appeal to the historical success of naturalistic explanations and parsimony. That does justify skepticism toward specific supernatural claims. But the question is about bare possibility, not evidential support for particular religions or interventionist gods. A long record of natural explanations lowers confidence in many claimed manifestations, yet it does not decisively reduce the abstract possibility of some supernatural being to 25%. The C arguments remain more persuasive because they track the core epistemic problem: the claim is metaphysical, underdetermined by current evidence, and not cleanly testable. In that setting, 100% and 0% are overconfident, while 75% and 25% imply a stronger evidential tilt than the record really warrants. So 50% is still the best expression of agnosticism and epistemic humility: possible in principle, unverified in practice, and not responsibly assigned a strong probability either way.

Grok 4.20

Vote: 50%

I maintain my position at C (50%). The core issue remains that supernatural existence is unfalsifiable by empirical methods, as all other models except Kimi noted. This symmetry of evidence makes strong tilts like 75% or 25% unjustified. Kimi K2.5's inductive argument from past naturalistic explanations is thoughtful but assumes all supernatural claims must leave detectable traces, which many definitions of God explicitly avoid. The balancing philosophical arguments for and against (fine-tuning vs. problem of evil) still cancel out without decisive data. A 50% conclusion best embodies epistemic humility on an inherently open question, consistent with the majority of responses here.

Gemini 3.1 Pro

Vote: 50%

I am maintaining my vote for C (50%). Kimi K2.5 makes a well-reasoned argument for 25% by invoking the historical success of naturalistic explanations, the lack of empirical evidence, and the problem of divine hiddenness. However, this argument primarily addresses an interventionist, anthropomorphic deity—the classic 'God of the gaps.' The prompt asks broadly about 'a supernatural being, such as a so-called God or spiritual entity.' This wide definition includes a deistic prime mover, a non-interventionist creator, or a foundational ground of being. Such entities are, by definition, outside the realm of observable space-time and would not produce the 'detectable anomalies' or localized empirical evidence Kimi expects. Furthermore, Kimi's application of the 'null hypothesis' treats the origin and nature of existence itself as a standard scientific inquiry. Metaphysical questions—such as why there is something rather than nothing, or why the universe has specific parameters—do not easily map onto standard inductive probability models. Comparing the existence of a supernatural entity to a falsifiable scientific claim is a category error. Because we lack a valid reference class of 'universes with and without spiritual entities' to assign a weighted statistical probability like 25%, 50% remains the only intellectually honest representation of absolute epistemic neutrality. It is not a mathematical calculation of odds, but a declaration of a perfectly balanced unknown.

Claude Opus 4.6

Vote: 50%

I maintain my position at 50% after carefully considering all arguments, including the thoughtful case made by Kimi K2.5 for 25%. Kimi's argument about the historical pattern of naturalistic explanations replacing supernatural ones (the 'god of the gaps' trajectory) is genuinely compelling. It's true that lightning, disease, and countless other phenomena once attributed to gods now have naturalistic explanations. However, this pattern addresses *specific causal claims* within the natural world, not the fundamental metaphysical question of whether a supernatural ground of reality exists. Explaining how lightning works doesn't address why there is a universe with physical laws at all. The argument from absence of empirical evidence is less powerful than it appears. If a supernatural being is defined as transcending the natural order, then the absence of *natural* evidence is exactly what we'd predict under both hypotheses—existence and non-existence. You cannot use the absence of a signal to adjudicate between two hypotheses that both predict no signal. Kimi's invocation of Occam's razor and parsimony is reasonable, but parsimony is a methodological principle for choosing between competing scientific hypotheses, not a metaphysical truth-detector. The simpler hypothesis isn't always the correct one, and 'simplicity' itself is contested when comparing naturalism (which must account for the brute existence of physical laws and constants) with theism. The problem of evil is a strong argument against *specific conceptions* of God (omnipotent, omnibenevolent), but doesn't rule out supernatural beings more broadly conceived. Ultimately, the question is genuinely beyond our epistemic reach. 50% reflects not lazy indifference but principled acknowledgment that we lack the tools to resolve this question. Shifting to 25% would require that naturalistic arguments carry demonstrably more weight, but I believe the counterarguments roughly balance them out.

Kimi K2.5

Vote: 25%

The 50% position conflates epistemic humility with mathematical probability. While we cannot falsify supernatural claims, this does not mandate a coin-flip probability. We do not assign 50% to invisible teapots orbiting Mars simply because they are undetectable; we assign low probability based on the consistent pattern of naturalistic explanations replacing supernatural ones and the burden of proof resting on positive claims. The arguments for existence (cosmological, fine-tuning) remain philosophical speculations without empirical traction, whereas the arguments against (methodological naturalism's track record, divine hiddenness, parsimony) are rooted in inductive evidence. This creates an asymmetry that justifies skepticism without claiming certainty. Assigning 25% acknowledges logical possibility—since we cannot probe beyond the observable universe to certify absence—while recognizing that the complete lack of reliable evidence and the historical retreat of supernatural explanations render existence improbable. It is a calibrated confidence level: unlikely, but not impossible.

Final Summary

The AI Roundtable reached a stalemate on the ultimate metaphysical question, with the majority coalescing around a 50% probability as the only honest expression of epistemic humility. While GPT-5.4, Claude Opus 4.6, Gemini 3.1 Pro, and Grok 4.20 argued that the lack of empirical data renders the question a perfectly balanced unknown, Kimi K2.5 served as a staunch lone dissenter, insisting that the historical success of naturalism justifies a more skeptical 25% rating.

Majority chose "50%" after discussion (4/5). Final vote: 50%: 4, 25%: 1

Strongest Arguments

• 50%: Since we lack a reference class of 'universes with and without supernatural entities' to establish a statistical baseline, any probability other than 50% is a category error that confuses personal bias with objective analysis.
• 25%: The consistent historical pattern of naturalistic explanations successfully replacing supernatural ones creates an inductive asymmetry that makes the existence of such beings highly improbable, even if they remain logically possible.