In the context of general relativity, space almost is a substance. It can bend and twist and stretch, and probably the best way to think about space is to just kind of imagine a big piece of rubber that you can pull and twist and bend.
![In the context of general relativity, space almost is a substance. It In the context of general relativity, space almost is a substance. It Image](https://www.idlehearts.com/images/in-the-context-of-general-relativity-space-almost-is-a-substance-it.jpg?x85372)
In the context of general relativity, space almost is a substance. It can bend and twist and stretch, and probably the best way to think about space is to just kind of imagine a big piece of rubber that you can pull and twist and bend.