I am a limit that no mass can cross, yet I can change the fabric of time. What am I?

Category: Science · Difficulty: hard

Hint: Think of a fundamental constant in physics.

Answer

Speed of light

Explanation

The speed of light is the maximum speed in the universe and affects time dilation according to relativity.

This is a hard science riddle — a tricky one that takes a little thought. The answer is Speed of light.

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