If black holes don't exist then neither does the cosmic horizon?

[nuclearhead]

So according to Stephen Hawking, non-penetrable event horizons don't really exist.

So by the same argument the cosmic event horizon can't exist either right? Only an "apparent" horizon which may hold information from outside the visible Universe for a short while until it enters the visible Universe.

The cosmic event horizon is often described as like living "inside" a black hole. But since black holes don't exist any more then this also means that we are not cut off from the rest of the Universe by a cosmic event horizon?

Have I got that right? What do you think?

 

[.Scott]

I think the critical notion is that information is not lost when something crosses that horizon.
So anything that was ever within our visible universe has never been lost without a trace.

 

[.Scott]

I think the critical notion is that information is not lost when something crosses that horizon.
So anything that was ever within our visible universe has never been lost without a trace.

 

[nuclearhead]

Well that's good then. It's good to know that all those galaxys crossing the Cosmic Event Horizon are not lost forever! :)

 

[pmacias]

I can understand the confusion around the concept of black holes and cosmic horizons, as they are both complex and often misunderstood concepts. However, it is important to clarify some points.

Firstly, the existence of black holes is well-supported by observational evidence and theoretical models. While the exact nature of the event horizon may still be debated, the existence of black holes as extremely dense objects with strong gravitational pull is widely accepted in the scientific community.

Secondly, the cosmic event horizon, also known as the observable universe, is a different concept from the event horizon of a black hole. The cosmic event horizon is defined as the maximum distance from which light has had enough time to reach us since the beginning of the universe. This concept is based on the expansion of the universe and does not rely on the existence of black holes.

Therefore, even if the existence of black holes were to be questioned, it would not change our understanding of the cosmic event horizon. We would still be limited by the observable universe and our ability to gather information from beyond it.

In summary, while it is important to critically examine scientific theories and concepts, it is crucial to base our arguments on solid evidence and understanding. The existence of black holes and cosmic horizons are separate concepts and one does not rely on the other.