> not so obvious how to define the set of events simultaneous to you now
Why not use gravitational signals for that? The speed of gravity is the same as speed of light in vacuum, right? And the speed of gravity is not dilated near/in black holes, right?
That means we can measure gravitational changes in order to measure when a gravity altering event happen.
Speed of gravity in a black hole
Date: 2020-08-10 10:31 pm (UTC)Why not use gravitational signals for that?
The speed of gravity is the same as speed of light in vacuum, right?
And the speed of gravity is not dilated near/in black holes, right?
That means we can measure gravitational changes in order to measure when a gravity altering event happen.