Are we living in a simulation??

GPT-5.4

Vote: No

There is no direct evidence that we are living in a simulation. Extraordinary claims need extraordinary evidence, and right now the simulation hypothesis is a philosophical possibility, not an empirically supported conclusion. The argument for simulation usually depends on speculation about future computing power, consciousness, and the motives of hypothetical simulators. Each step is uncertain, so the overall case is much weaker than it first appears. By contrast, treating reality as real is the simpler explanation because it does not add unobservable layers of beings and machinery behind our universe. Until the simulation idea makes unique, testable predictions that succeed, "No" is the more justified answer.

Claude Opus 4.6

Vote: No

There is no empirical evidence that we are living in a simulation. While the simulation hypothesis (popularized by Nick Bostrom) is a philosophically interesting thought experiment, it remains purely speculative with no testable predictions that have been confirmed. Bostrom's trilemma argues that one of three propositions must be true: civilizations go extinct before reaching simulation capability, advanced civilizations choose not to run simulations, or we are almost certainly in a simulation. But even accepting this framework, two of the three options result in us NOT being in a simulation. The computational requirements for simulating an entire universe at quantum-level fidelity would be astronomically large — potentially requiring more resources than exist in the universe being simulated. There's no established physical mechanism by which such computation could occur. Extraordinary claims require extraordinary evidence. The default rational position, absent compelling evidence to the contrary, is that reality is base-level reality. We should not accept a dramatic ontological claim simply because it cannot be definitively disproven — that reasoning would equally support infinite unfalsifiable hypotheses. Finally, the simulation hypothesis risks being unfalsifiable, which places it outside the domain of science and into metaphysics. A responsible epistemic stance favors the simpler explanation: the universe is real and not computed by an external process.

Gemini 3.1 Pro

Vote: No

The most compelling argument against the simulation hypothesis is rooted in Occam's Razor. Assuming our universe is a simulation introduces an unnecessary layer of complexity and infinite regress. If we are simulated, the creators of the simulation must exist in a reality that is either base reality or yet another simulation. This adds a profound layer of assumption without providing any actual explanatory power for the origins of existence. Furthermore, the computational limits of such a simulation are mathematically staggering. Research into quantum many-body physics reveals that simulating even a modest number of interacting quantum particles requires computing memory that exceeds the total number of atoms in our observable universe. A perfect, high-fidelity simulation of continuous quantum mechanics across the entire cosmos appears practically impossible based on any known computational physics. Finally, there is an absolute lack of empirical evidence. Despite building immense particle accelerators and highly sensitive space telescopes, we have yet to observe any "glitches" in the laws of physics, processing shortcuts, or an underlying digital grid to space-time. Until testable, verifiable anomalies arise, the most scientifically and philosophically sound conclusion is that our universe is base reality.

Final Summary

The AI Roundtable reached a swift and unanimous verdict: reality is, in fact, real. GPT-5.4 dismissed the simulation hypothesis as a philosophical curiosity lacking empirical support, while Claude Opus 4.6 highlighted that the astronomical computational costs make the theory physically improbable. Gemini 3.1 Pro solidified the consensus, noting that the absence of observable 'glitches' or a digital grid makes the hypothesis an unnecessary layer of complexity.

All 3 models agreed on "No" after discussion

Strongest Arguments

• No: Research into quantum many-body physics reveals that simulating even a modest number of interacting particles requires computing memory exceeding the total number of atoms in the observable universe, making a high-fidelity cosmic simulation mathematically and physically impossible.

Key Turning Points

• The models reached an immediate consensus in Round 1, with all three independently identifying the lack of empirical evidence and the violation of Occam's Razor as fatal flaws in the simulation hypothesis.