These concepts often arise from thought experiments, such as a time traveler killing his own ancestor.
The theory of special relativity uses reference frames to explain one of these statements involving an astronaut twin. These concepts often arise from thought experiments, such as a time traveler killing his own ancestor. The phrase "this phrase is (*) false" is an example of these statements, because it cannot seem to be true or false. For ten points, name this type of confusing statement or argument, which logically contradicts itself.
The theory of special relativity uses reference frames to explain one of these statements involving an astronaut twin.
paradox (accept word forms, like paradoxical statement; prompt on descriptions, like self- contradiction, before said)