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The probabilistic argument that we are likely living in a simulation only holds if an advanced civilization can create conscious beings in a computer. This crucial premise—that consciousness is replicable in code—remains a complete unknown, making the entire theory speculative.
Our experience of consciousness is itself a model created by the mind. It's a simulation of what it would be like for an observer to exist, have a perspective, and reflect on its own state. This makes consciousness a computational, not a magical, phenomenon.
Simulating a system, like a fruit fly's brain, doesn't replicate its reality, only our observations of it. The universe itself generates physical structures that are too complex to be simulated within its own computational limits, showing the fallacy of equating simulation with reality.
Philosopher Nick Bostrom argued statistically that we are likely in a simulation. Recent physics proving the universe is not locally real and behaves computationally provides empirical evidence that aligns with the structural requirements of Bostrom's hypothetical simulation.
Nick Bostrom suggests we are at or past the point where we can be sure large AI models lack any form of subjective experience. This uncertainty necessitates treating them with a degree of moral consideration, akin to that given to sentient animals.
The debate over AI consciousness isn't just because models mimic human conversation. Researchers are uncertain because the way LLMs process information is structurally similar enough to the human brain that it raises plausible scientific questions about shared properties like subjective experience.
Consciousness isn't an emergent property of computation. Instead, physical systems like brains—or potentially AI—act as interfaces. Creating a conscious AI isn't about birthing a new awareness from silicon, but about engineering a system that opens a new "portal" into the fundamental network of conscious agents that already exists outside spacetime.
A counter to simulation theory: if we were in a simulation, we should also be able to create one. Since we can't, we are not a link in the middle of an infinite chain. This places us at a terminus—either the original base reality or the final simulation in a branch—dramatically increasing the odds that we are real.
If any civilization can create a convincing simulation, and those simulations can create their own simulations, the number of simulated realities would vastly outnumber the single "base reality." This makes it statistically probable that we are living inside one of the countless nested simulations rather than the original one.
The critique "simulating a rainstorm doesn't make anything wet" is central to the debate on digital consciousness. The key question is whether consciousness is a physical property of biological matter (like wetness) or a computational process (like navigation). If it's a process, simulating it creates it.
The existential risk of AI is tied to our profound ignorance about consciousness. Because we cannot explain how it emerges, we cannot reliably predict its appearance in advanced AI systems. This uncertainty is at the heart of the alignment problem.