The Structure of Discovery (Polanyi)

Polanyi's account of discovery overturns the standard scientific-method narrative of hypothesis, test, and verification. Real discovery, he argued, begins not with a formulated hypothesis but with an intimation—a pre-articulate sense, often no more specific than "something is there," that guides the researcher toward one line of inquiry rather than another. The researcher commits to this intimation before the evidence justifies commitment, pursues it through uncertain territory, and only afterward constructs the explicit hypothesis that textbooks present as the starting point. This structure—intimation, commitment, pursuit, validation—cannot be reversed. The intimation must come first, and the intimation is irreducibly tacit: it arises from the researcher's embodied sensitivity to the domain's unresolved tensions, her fine sense of what is plausible, her accumulated understanding of where the existing frameworks strain against reality. AI systems do not intimate. They compute probable outputs from existing data. They can articulate hypotheses, test them, and evaluate results. But they cannot exercise the tacit judgment that selects which hypothesis is worth testing from the vast space of hypotheses that could be formulated—and that