What comes to this black hole thing. Well i think black holes are actually holes in that "2d quantum fabric" from which this hologram is projected from. But that black holes are similar than to what we are inside of. However it is more like that there was a big bang and now we are riding on the edge of the expansion of the universe, which from my understanding would be similar to even horizon in a black hole, or similar to how we perceive it as it is an empty globe and its edges reveal the shape of the actual universe, or how we would perceive it from this perspective of an hologram.
The start and end of time was made at the same time, im not sure about the in between stuff. Either it was also made at the same time and time is a solid structure of spacetime that we move along, meaning no true free will as things would be set in stone. Or then even tho the universe must end a certain way, there is room for free will in it, so that it expands as we live and do this whole collapsing of waveform to particles via conscious observation.