J.C.MacSwell

Two people not at rest wrt each other can agree on certain points (areas) of simultaineity but not everywhere in their inertial frames.

Only with "supplements"!

Just thoughts on the subject. The question marks are mostly so noone takes them as definite or accepted theory. I was hoping others might respond also.

As an example the kinetic energy of an object disappears in it's own reference frame.

I'm sure you are correct, but where is this from?

Yes, 50% further out.

This is correct but also outside the event horizon. (50% further out according to the link as Spyman pointed out)

I think it is for mass...but not for light!

The event horizon is the point (surface) from which nothing (quantum effects aside) can escape. It is not near the point (surface) at which the escape velocity of any mass would approach c. This point (surface) is outside both the event horizon and photon sphere. When you first posted your argument made sense to me, but it was because I was confusing the two points (surfaces again), so I had to think about it. Does this other surface have a name?

Is there another horizon outside the event horizon and photon sphere that corresponds to the escape velocity of massive particles that approach light speed? I think that may be the one you can (in theory) "climb" or accelerate out of as Insane Alien describes.

[ Oh, and I apologize for the "gravuty" error. "U" is pretty close to "I" on the keyboard, in my defense. No bug deal

And expands

This requires a material that has infinite tensile strength/stiffness and results in an infinite force.

Personally, I prefer Big Bang Model to Big Bang Theory. The evidence is limited not unlimited of course, but more significantly is largely untestable and based on a huge extrapolation. All of which is commendable under the circumstances and it seems it is a "best guess" at this time but the jury should still be out IMHO.

I'll guess 2!

53 for me!