I several times have encountered questions, asked by myself and other people about different things, subjects, phenomena, considered to be absurd to common perception. But, sometimes through rigourous thinking, I have found some valiant insight into wisdom by answering those questions(some).
History says absurdity is often misunderstood. Before Gallileo's obsrvation of the solar system, the idea of a heliocentric solar system would have seemed absurd. Set theory's some assertions seem to be absurd to common sense. Einstein's thinking beyond Newtonian gravity seemed absurd. Sometimes 'absurd' thinking gives birth to new realm of wisdom.
So, my question, what should be the exact definition of 'absurdity?