The conversation between human and AI assistant.
If you switch on a torch light on a spaceship travelling at speed close to speed of light, would the torch light be travelling faster than the speed of light as observed from outside the spacecraft?
Wow, that's really fascinating. Can you tell me more about the concept of time dilation?
Sure. Time dilation occurs because, according to the theory of relativity, time and space are interconnected and can be thought of as a four-dimensional 'fabric' called spacetime. When an object is in motion, its spacetime 'fabric' is stretched, which slows down time for the moving object compared to a stationary observer.