||This article has multiple issues. Please help improve it or
discuss these issues on the talk page. Falsifiability or
refutability is the trait of a statement, hypothesis, or theory
whereby it could be shown to be false if some conceivable
observation were true. In this sense, falsify is synonymous with
nullify, meaning not "to commit fraud" but "show to be false".
By the problem of induction, no number of confirming
observations can verify a universal generalization, such as All
swans are white, yet it is logically possible to falsify it by
observing a single black swan. Thus, the term falsifiability is
sometimes synonym to testability. Some statements, such as It
will be raining here in one million years, are falsifiable in
principle, but not in practice. The concern with falsifiability
gained attention by way of philosopher of science Karl Popper's
scientific epistemology "falsificationism". Popper stresses the
problem of demarcation—distinguishing the scientific from the
unscientific—and makes falsifiabi