Rubbish.
Also rubbish.
What makes you think gravity isn't already there?
No "journeys" required.
1/ Well I may have interpreted the Retrograde Motion as a push by mistake.
2/ Gravity could be already there, but it still had to travel from Earth, else mass wouldn't make any difference, and Gravity wouldn't be a pulling force. A pulling force requires that the material starts from the pull, that's why it's called a pull in the first place. Otherwise it's a push, and you aren't really distinguishing it from the Aether at all.
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