the.com/paradox
a sentence so true it lies, so logical it breaks the rules that built it
means a statement or situation that seems to contradict itself yet may be true, or that defies intuition by holding two incompatible truths at once.
from From Greek 'paradoxon,' a thing contrary to expectation — built from 'para' (beside, beyond) and 'doxa' (opinion, belief). So at root a paradox is what stands 'beside belief,' just off to the side of what we expect to be true. It came into English through Latin in the 16th century.
- liar's loop
- This statement is false crashes every system of logic
- Russell's blow
- A paradox forced mathematics to rebuild its entire foundation
- twin proof
- Travel near lightspeed, return younger than your sibling
- word origin
- Greek for beyond belief, against opinion
- useful break
- Quantum particles exist in contradictory states until measured
grandfather paradox — time travel thought experiment where you kill your grandfather before your parent's birth, so you couldn't exist to travel back
liar's paradox — ancient logical puzzle: the statement 'this sentence is false' creates self-referential contradiction
zeno's dichotomy paradox — ancient greek paradox: to travel anywhere, you must first travel half the distance, then half of what remains, infinitely