Kernel
Zhuangzi is the philosopher whose butterfly-dream parable poses the simulation problem 2,300 years before Bostrom. "I dreamt I was a butterfly; now I do not know whether I am Zhuangzi who dreamt he was a butterfly, or a butterfly dreaming he is Zhuangzi." The parable does not solve the problem of consciousness; it argues that the certainty of one's experience does not entail certainty about its substrate.
Contribution
The Zhuangzi (c. 3rd century BCE) — the most literary major Daoist text, structurally a series of philosophical parables. The systematic skepticism about the boundaries between dream and waking, observer and observed, self and other. The vocabulary of Daoist epistemology that later Buddhism inherits and reorganizes.
Civilization-scale significance
The figure through whom Chinese philosophy preempts much of 20th-century Western philosophy of mind. Zhuangzi's positions on perspectivism, the relativity of categorization, and the equivalence of dream and waking states are recognizable in Wittgenstein, Quine, and contemporary cognitive science.