To make the ideas easier to explain, people will often tell you to imagine something more familiar, like a big flat sheet with weights on it. These pictures are good, but sometimes they make you think of new questions, and when you try to use the picture to answer the new questions, you get answers that don’t fit with each other.
The Space Doctor’s Big Idea
Einstein’s theory of general relativity, explained using only the thousand most common words in English.
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