On Jul 23, 10:08 pm, Koobee Wublee wrote:
On Jul 21, 5:05 pm, Chalky wrote:

On Jul 21, 6:41 pm, Tom Roberts wrote:
Yes, of course. This becomes obvious when applying GR. Indeed, the
ability to model gravity using a potential phi inherently requires weak
fields and an approximation.

Quite. Nevertheless, GM / R in the exact Schwarzchild solution
certainly looks and smells like Newtonian potential energy, even
though we are advised to avoid stepping in it.

Each solution or the metric to the Einstein field equations is unique
and describes an independent universe from all other solutions. One
such particular solution that Hilbert had discovered is the famous
Schwarzschild metric

Really? I thought Schwarzschild discovered the Schwarzschild metric
only months after Einstein published his gravitational field equation.
Are you claiming Hilbert did it all first?

Of course, the (2 G M /c^2 / r) term smells like twice the Newtonian
potential.

We seem to have our wires crossed here. I was referring to the
redshift which is (1 - 2GM/R) -!/2

This only acts like twice the Newtonian potential at the relativistic
event horizon, which is exactly the same as what we find by applying
the General Principle to the rotating disk.

Why should I be surprised by that?