Before revision: Quine's classification W. V. O. Quine (1962) distinguished between three classes of paradoxes: According to Quine's classification of paradoxes: A veridical paradox produces a result that appears counter to intuition, but is demonstrated to be true nonetheless:
After revision: That the Earth is an approximately spherical object that is rotating and in rapid motion around the Sun, rather than the apparently obvious and common-sensical appearance of the Earth as a stationary approximately flat plane illuminated by a Sun that rises and falls throughout the day.Quine's classification W. V. O. Quine (1962) distinguished between three classes of paradoxes: According to Quine's classification of paradoxes: A veridical paradox produces a result that appears counter to intuition, but is demonstrated to be true nonetheless: