I thought it was widely agreed that time was a construct?
In relativity time is a real dimension like space , but of a different type, and your speed in time depends on your speed in space and on your proximity to big masses, like planets. This kind of physics is necessary to keep the satellites synchronised otherwise their clocks go at a different speed from those on earth, so this is all very real and confirmed.
The way i understand it is that a faster or heavier object has more energy, thus bends spacetime more.
It’s far stranger than that.
The problem that shows exactly how tangled the problem is, is this: accelerating is the same as gravity.
Not “they feel the same” or “We can compare them” or " They’re similar in many ways" no, I mean literally. They are the same thing. This has been proven.
The force that is making you stick the planet is the same as being in a car and driving constantly faster and faster forever.
If this makes zero sense to you, that’s good, it means you’re human. But it also means that our vision of the universe is radically different than whatever kind of objective reality is out there, if there is one.
(What gives is time. Time is what’s changing when you move through space AND when in a gravitational field. You can also study this field for decades and barely come closer to being able to visualize it. Our brains were not meant.)
