How can two distant objects influence each other at a distance

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NeilWallace
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I have trouble getting my head round gravity. How can two objects influence each other at a distance in a vacuum. I have heard of gravitons and spaced curved time as explanations of gravity and have never been able to get my head round these. Can anyone say what the most recent view is for the cause of gravity?
 
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Curved spacetime is still the most recent view.

Is your concern with action at a distance? If so, then you should know that the Einstein Field Equations are expressed purely in terms of local differential equations. There is no need to suppose any action at a distance.