Taking for granted or accepting as true without proof; supposing something to be the case. Can also mean taking on a responsibility or role.
From Latin 'assumere', combining 'ad-' (to) and 'sumere' (to take). Originally meant to take to oneself, evolving to mean taking something as given or accepting a premise without verification.
The phrase 'assuming makes an ass out of u and me' playfully highlights the dangers of assumptions, but assuming is actually essential for human cognition. We must make countless assumptions daily just to function, from assuming the ground will support our steps to assuming others share basic logical principles.
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