A traveler goes from city A to city B, but the distance he travels is not the same as the distance he perceives. What principle explains this phenomenon?
Category: Brain · Difficulty: hard
Hint: Think about how time and space can distort perception.
Answer
Relativity
Explanation
Einstein's theory of relativity shows that time and space can change depending on the observer's speed.
This is a hard brain riddle — a tricky one that takes a little thought. The answer is Relativity.
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