A modern variant of Hume’s Guillotine—the principle that
one cannot derive an “ought” from an “is.” The Formal Guillotine extends this separation to
data, evidence, proof, and science, isolating them from their social, political, economic, linguistic, and constructed contexts. It insists that facts must be presented as pure, context‑free objects, stripped of any value‑laden or situated meaning. This guillotine is widely wielded in analytical philosophy and positivist‑adjacent fields to dismiss critiques that link scientific findings to
power or ideology, claiming that such linkages are “
extra‑scientific.” It effectively sanitises knowledge by severing its roots in human
society.
Example: “When she pointed out that the study was funded by an oil company, he invoked the formal
guillotine: ‘That’s a political claim, not a scientific
one. The data stand
alone.’”