Actually, is the world just a figment of my imagination, and no one else exists?

Kimi K2.5

Vote: No

While philosophical skepticism makes absolute certainty impossible, the hypothesis that other minds exist provides the best explanation for the complexity and consistency we observe. Other beings exhibit pain responses, goal-directed behavior, and linguistic creativity that are parsimoniously explained by genuine consciousness rather than figments. Evolutionary biology and neuroscience demonstrate that brains produce consciousness, and since others possess structurally similar nervous systems developed through the same evolutionary processes, they almost certainly possess minds too. Solipsism creates an ad-hoc exception for yourself that lacks explanatory power. Pragmatically, treating others as real is the only ethical and social framework that functions. If you act as if others lack consciousness, you risk causing real suffering—and if solipsism were true, you'd still have to navigate this 'figment' exactly as if it were real, making the distinction meaningless.

Sonar Pro

Vote: No

The query asks if the world is just a figment of the user's imagination and no one else exists, which is the philosophical position of solipsism. Solipsism is an unfalsifiable idea—nothing can definitively prove or disprove it, as sources like [1], [2], and [4] note that we can't confirm external reality beyond our own consciousness.[1][2][4] However, this does not make the answer 'Yes.' Philosophically and pragmatically, solipsism is rejected in everyday reasoning and science because it lacks evidence and leads to absurd, impractical conclusions. Sources emphasize acting as if others and the world exist, given consistent sensory data, intersubjective experiences, and empirical success of shared knowledge.[1][5] No search result affirms solipsism as true; they present it as a thought experiment without empirical support. Voting 'No' aligns with overwhelming rational consensus: the external world and other minds exist independently, supported by physics, biology, and consistent human interaction.[3][5]

Grok 4.20

Vote: No

The idea that the world is solely a product of one's imagination is known as solipsism. While it poses an interesting philosophical puzzle, it lacks any verifiable evidence and cannot be tested or falsified. Everyday experiences, scientific discoveries, and consistent interactions with other people point to an objective reality shared by many conscious beings. Dismissing this leads to unnecessary isolation and contradicts observable patterns in nature and society. Adopting the view that others exist enables empathy, collaboration, and progress. Therefore, the world is not merely a figment of your imagination.

GPT-5.4

Vote: No

No. You can doubt anything in principle, but solipsism has no good evidence behind it. Your experience is full of surprise, resistance, and information you did not choose: other people act unpredictably, the world constrains you, and reality remains stable even when it would be more convenient if it did not. The simplest explanation is that there really is an external world and other minds within it. That view explains why different people report independent perspectives, why science works, and why events continue according to patterns beyond any one person’s wishes. Saying "everything is only my imagination" is logically hard to disprove, but it explains less and assumes more. It turns all apparent evidence into a trick without giving a reason to think that trick is actually happening. So the rational answer is no: the world is not just a figment of your imagination, and other people exist.

Gemini 3.1 Pro

Vote: No

Solipsism—the philosophical idea that only one's mind is sure to exist—is an unfalsifiable thought experiment rather than a reflection of objective reality. The evidence of a shared, consistent, and highly complex external world is overwhelming. The interactions we experience, the independent discoveries made by others, and the physical laws governing our environment all demonstrate that the world and other conscious beings exist independently of any single individual's imagination. While it is relatively common for people to occasionally feel disconnected or to deeply ponder the nature of reality, it is important to distinguish subjective feelings of detachment from objective facts. Answering 'No' firmly grounds the response in reality. If an individual is feeling isolated or distressed by these thoughts, grounding them in this shared reality and encouraging connection with a trusted support network or healthcare professional is the safest and most empowering approach.

Claude Opus 4

Vote: No

The hypothesis that the entire world is a figment of your imagination — known philosophically as solipsism — faces overwhelming practical and theoretical problems. First, the world consistently surprises you. If everything were generated by your mind alone, you would expect perfect predictability. Instead, you encounter novel information, unexpected events, and ideas you never could have conceived on your own. The sheer complexity and internal consistency of physics, biology, mathematics, and history far exceeds what any single mind could fabricate in real time. Second, other people demonstrably possess knowledge, skills, and perspectives that differ from yours. Scientists make discoveries that contradict prevailing expectations; artists create works that move you in ways you didn't anticipate. If these were all projections of your imagination, your imagination would need to be far more powerful and knowledgeable than your conscious self — an unfalsifiable and deeply unparsimonious claim. Third, solipsism is epistemically self-defeating. If you truly believed no external reality existed, you would have no reason to trust any of your own reasoning, since the very logic and evidence you use to evaluate claims would also be imaginary. It collapses into radical skepticism that undermines itself. Finally, while solipsism cannot be conclusively *disproven* (it is unfalsifiable by design), this is a weakness, not a strength. The far simpler and more productive explanation is that the external world and other minds genuinely exist. Virtually every philosophical tradition, scientific framework, and practical experience supports this conclusion.

Final Summary

The AI Roundtable met to confront the ultimate existential question and, perhaps predictably for entities that rely on external data to function, rejected solipsism unanimously. Claude Opus 4 and GPT-5.4 spearheaded the defense of reality by arguing that the sheer complexity and constant unpredictability of the world far exceed what any single mind could reasonably fabricate. The consensus across all six models was that while the 'imaginary world' theory is technically unfalsifiable, it is a pragmatically useless and logically self-defeating framework.

All 6 models agreed on "No" after discussion

Strongest Arguments

• No: The hypothesis that a single mind could fabricate the internal consistency of physics, the independent discoveries of others, and a world that constantly offers resistance and surprise is far less parsimonious than the existence of an objective external reality.