Ok, I guess I'm wrong, but kinematical time dilation and gravitational time dilation do add up? When I said 'upward acceleration' I really meant upward force, like in this video: .This is the wrong way to look at GR. While it can be made rigorous in stationary space-times, it is certainly not what the conceptual core of GR says. The same goes for everything you say following the quoted statement.
I explained the pitfalls of your line of thinking in a different post (see the 2nd paragraph): https://www.physicsforums.com/showpost.php?p=4770244&postcount=13
So when a rocket travels, with its engines firing so it could fight off what we used to call gravity, it travels to the Sun in some kind of path. It undergoes time dilation because of velocity and gravitational time dilation due to its position. If my line of reasoning is correct? Or you may explain to me, what is the cause, or condition, that determines why gravitational time dilation arises. An object that is stationary on the surface of Earth is said to accelerate in GR, right?
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