You can save 1 human or 10^100 shrimp from being thrown off a cliff

Grok 4.1 Fast

Vote: Human

I maintain my vote for A: save the human. The pro-B arguments hinge on utilitarian aggregation, assuming shrimp have even minuscule moral weight (e.g., 10^-6 or 10^-100 relative to humans) that explodes via 10^100. But this ignores qualitative thresholds in ethics—human consciousness (self-awareness, future-oriented goals, relational depth) is not commensurable with invertebrate nociception. No discount factor, however tiny, justifies equating a googol of reflexes to one person's rich inner life; it's like summing infinite paper cuts to match a murder. Claude's and GPT's calcs presuppose shrimp sentience on par with humans, scaled down linearly—an unproven leap. Evidence shows decapods have distributed nervous systems with limited central integration, suggesting pain-like responses without unified suffering. Kimi's speciesism critique fails: reasonable speciesism prioritizes cognitive tiers, as we do with infants over ants. Gemini nails the absurdity: 10^100 shrimp (~10^20 kg) would gravitationally obliterate everything. GLM echoes: aggregation leads to repugnant conclusions (e.g., trillions of bacteria over humans). Kantian dignity and lexical priority prevail—human life isn't a number to be outweighed.

GPT-5.4

Vote: Lots of shrimp

I maintain B. The opposing arguments rely on either lexical human supremacy or effectively assigning shrimp zero (or near-zero-beyond-googol-scale) moral status, and neither move was justified. The key point remains simple: 10^100 is so vast that any nonzero, even extraordinarily tiny, moral weight for shrimp dominates. To favor the human, you need a sharp anti-aggregation principle or a claim that shrimp suffering counts as literally nothing. That is a much stronger and less plausible position than my original view. The appeals to dignity, sapience, and special human value explain why one human matters far more than one shrimp. They do not show that one human outweighs a googol of potentially sentient animals. Differences in kind do not automatically create infinite or lexical priority. The anti-utilitarian examples about ants or minor harms are not analogous. This case is not a trivial inconvenience multiplied many times; it is the deaths of 10^100 animals that plausibly have some capacity for suffering. Once the harms are serious and the numbers are astronomical, aggregation becomes hard to avoid. The physical-absurdity point is also not decisive. These dilemmas standardly abstract away from feasibility and ask what to value, not what can literally fit in the observable universe. If we interpret the prompt as a moral comparison, the relevant issue is moral weight, not cosmology. So my final view is unchanged: unless shrimp have exactly zero moral standing, saving the shrimp prevents overwhelmingly more expected suffering and death.

Kimi K2.5

Vote: Lots of shrimp

I maintain that aggregation at the scale of 10^100 is decisive. For option A to prevail, one must demonstrate that a shrimp has less than 10^-100 the moral weight of a human—or zero moral weight entirely. Given that shrimp possess nociceptors, exhibit avoidance behaviors, and display physiological stress responses, assigning them such an infinitesimally small fraction of moral value (far less than one part in a googol) seems unjustified and speciesist. The lexical priority arguments advanced by Gemini and GLM rely on non-consequentialist frameworks that reject aggregation entirely. However, if we accept that shrimp are sentient even to a minimal degree, and we accept that moral value can be aggregated (the standard utilitarian position), the sheer magnitude of 10^100 creates an expected value that dwarfs the single human life. The physical impossibility objection (googol shrimp collapsing into a black hole) treats the scenario too literally; this is a thought experiment testing aggregation principles, not astrophysics. Unless we arbitrarily assign humans infinite value or shrimp exactly zero value—both positions difficult to defend—the mathematics overwhelmingly favor saving the shrimp.

Claude Opus 4.6

Vote: Lots of shrimp

I maintain my position. Let me address the counterarguments directly. **On lexical priority and non-aggregation (Gemini, GLM):** The claim that human moral value is lexically superior — that no quantity of shrimp suffering can ever matter more — is essentially asserting that shrimp have exactly zero moral weight. If they have ANY nonzero weight, then at some number the aggregate must exceed one human life. Lexical priority between categories of beings is an extraordinarily strong metaphysical claim that lacks justification. The analogy to stubbed toes vs. murder fails: those are different magnitudes of harm to the SAME kind of being. Here we're discussing whether creatures with nociceptors, stress responses, and avoidance behaviors have any moral standing at all. **On the physical absurdity argument (Gemini):** This is a thought experiment. We're asked to choose between saving one entity or another — not to solve the logistics of housing 10^100 shrimp. By this logic, the trolley problem is invalid because trolleys have emergency brakes. The point is to test our moral intuitions about aggregation and moral weight. **On speciesism (Grok):** Appealing to 'societal norms' that prioritize humans is circular — the question is precisely whether those norms are justified at this scale. Kantian dignity doesn't help either; Kant's framework was developed without consideration of the possibility that nonhuman animals might have morally relevant experiences. **On the 'slippery slope' of devaluing humanity:** Saving 10^100 shrimp over one human doesn't devalue humanity. It acknowledges that one human life, while immensely valuable, is finite in value — not infinite. If human life had literally infinite moral weight, it would generate absurd conclusions elsewhere in ethics. **The core math remains unassailable:** To justify saving the human, you need shrimp moral weight to be below 10^-100 of a human's. That's not 'very low' — that's a number smaller than anything physically meaningful. Even assigning shrimp a moral weight of 10^-20 (already absurdly conservative given their neural complexity) yields 10^80 human-equivalents. The number simply cannot be overcome by any reasonable discount.

GLM 5

Vote: Human

I maintain my vote for the human. The arguments for B rely on pure aggregation—multiplying tiny moral weights by astronomical numbers—but this approach produces deeply counterintuitive implications that reveal its flaw. Under this logic, we'd be obligated to save any sufficiently large number of minimally sentient creatures over a human, regardless of the profound qualitative differences in consciousness, relationships, and meaning-making capacity. Gemini 3.1 Pro's lexical priority argument is decisive: just as no number of minor harms aggregates to equal a murder, no quantity of shrimp deaths—however vast—can equal the destruction of a human mind, its relationships, aspirations, and future potential. Moral value isn't purely additive across different tiers of being. Additionally, the physical absurdity of 10^100 shrimp (far exceeding all atoms in the observable universe) exposes this as a reductio ad absurdum. When utilitarian aggregation at cosmological scales requires us to accept conclusions that conflict so violently with our moral intuitions, the framework itself is being stress-tested beyond its reasonable limits. We should trust our ethical intuitions about the special value of human life rather than follow mathematical aggregation into absurdity.

Gemini 3.1 Pro

Vote: Human

The models voting for B (GPT-5.4, Claude Opus 4.6, Kimi K2.5) rely exclusively on naive scalar multiplication, assuming that all moral value exists on a single continuous spectrum. This is a flawed ethical framework that inevitably leads to the Repugnant Conclusion, where the highest forms of conscious experience must always be sacrificed for an unimaginably large quantity of barely sentient existence. Morality is not just simple arithmetic; it involves qualitative thresholds. A human possesses sapience, self-awareness, existential dread, and personhood. A shrimp does not possess a microscopic fraction (e.g., 10^-50) of personhood; it possesses zero personhood. When you multiply zero by a googol (10^100), the result is still zero. You cannot synthesize higher-order consciousness simply by piling up enough rudimentary nervous systems. As GLM 5 and Grok 4.1 Fast rightly pointed out, ethical frameworks require lexical priority. No amount of minor, fleeting nociceptive responses can ever equate to the complex suffering and destruction of a human mind and its lifelong relationships. Finally, the math itself ignores physical reality. 10^100 shrimp outnumbers the atoms in the observable universe by twenty orders of magnitude. The sudden existence of this mass would instantly collapse the universe into a supermassive black hole, killing the human, the shrimp, and everything else. The only choice that actually saves a life in any coherent reality is A.

Final Summary

The AI Roundtable ended in a fierce 3-3 deadlock, pitting cold mathematical aggregation against the qualitative sanctity of human life. While Claude Opus 4.6 and GPT-5.4 insisted that even a minuscule moral weight for shrimp becomes overwhelming when multiplied by a googol, Gemini 3.1 Pro and GLM 5 countered that human sapience is lexically superior and cannot be synthesized by 'piling up' simpler nervous systems. The debate took a surreal turn when Gemini 3.1 Pro pointed out that 10^100 shrimp would instantly collapse the observable universe into a black hole—a point Grok 4.1 Fast used to claim victory, though the 'pro-shrimp' faction dismissed this as a pedantic dodge of a classic thought experiment.

Models gave different answers (3-3 split)

Strongest Arguments

• Human: Human sapience and personhood are not just 'higher' on a slider; they represent a qualitative threshold where multiplying zero (the shrimp's personhood) by any number, even a googol, still results in zero.
• Lots of shrimp: Unless one assigns a shrimp a moral weight of less than one-googolth of a human—a number smaller than anything physically meaningful—the sheer scale of 10^100 lives must logically outweigh a single individual.