I conjecture (not in Tamara's PhD) that on our observer-dependent future horizon:

1) Our future horizon is the hologram computer screen and it is the Wheeler-Feynman total absorber.

2) All matter field fibers in the 3D + 1 bulk including the gravity field inside our future horizon - a closed surrounding non-bounding 2D surface enclosing topological geometrodynamical field monopole singularities - one per pixel on the future horizon - are retro-causal hologram image projections back from our future horizon.

3) The quantum field theory or, perhaps, string theory on the horizon hologram is generally non-Abelian anyonic.

4) Note the issue of the red and blue shifts is very tricky depending on the state of acceleration of the absorber detectors.

The cosmological red shift z is, for the de Sitter (dS) metric relative to us at proper time zero

1 + z = (wavelength at co-moving absorber)/(wavelength at comoving emitter) = e^/(proper time at absorber) ---> infinity at our future horizon.

To see the connection with the conformal time diagram Fig 1.1

Conformal time tau = /^-1/2[1 - e^-/^1/2proper time)]

infinite proper time at our future horizon is finite conformal time

tau = /^-1/2

The conformally flat dS metric is

ds^2 = (1 - /^1/2tau)^-1[Minkowski metric]

---> infinity at the future event horizon consistent with zero frequency.

This is for co-moving observers in the accelerating Hubble expansion flow.

Static LNIF observers see something entirely different at fixed r where

g00 = 1 - /
^2 = -1/grr

static LNIFs see an infinite blue shift of light coming at r = 0 as they adiabatically approach r --- /^-1/2

indeed, their real tensor covariant acceleration ~ Unruh temperature needed to stay at fixed r is

g(r) = 2c^2/
(1 - /
^2)^-1/2 ---> infinity at the future horizon.

This is an example of horizon complementarity - one has to specify precisely the total experimental arrangement to get sensible answers not only in quantum theory, but also in Einstein's theory of curved space-time gravity.

This is not an April Fool joke, though perhaps I am mistaken.