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Until now, the thing fancied me most is the speed of the gravitation. Not Quantum communication, not string theory.
What is the speed of gravitation? How can we measure it?
I have no idea!
But I can tell you, it is really exciting. There are so many things we can think about, discuss about and having no answer at the same time.
For example, what happened before gravitation acting on an object?
Was it totally free? Or was it motionless and couldn't do anything about itself?
We maybe never know. But the more interesting moment is when the gravitation began to work.
Let's think about it! At first, there was nothing.
And then came the gravitation.
and then came the light.
And then the object would say, "oh my God, I can see myself and having a destination of myself!"
This is not the whole story.
There is another question we can hardly imagine, "How does the gravitation travel?"
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