Karl Popper · Philosophy
Popper’s criterion of demarcation - what separates science from pseudo-science is not that a theory can be confirmed, but that it can be <em>refuted</em>: a scientific theory sticks its neck out, forbids certain observations, and risks being proved wrong.
You learned that Popper’s line between science and non-science is falsifiability : a scientific theory forbids certain possible events and can be refuted by observation, while an unfalsifiable theory (which fits every conceivable outcome) tells us nothing about the world. Explain the criterion, and why Popper th…
Leads to Xenophanes.
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