Light in a black hole

You can reverse the path in a convex lens and get the same effect though. Just try flipping a lens to simulate this. Light can always travel the same path in both directions, no matter the geometry (except in black holes somehow?)

Even though black holes emit massive amounts of x-rays and radio, and are very bright objects, somehow they don't emit anything because muh gravity, also Hawking said he's pretty sure event horizons can't exist because muh thermodynamics.

Haven't studied GR in a whole lot of depth but I believe the pop sci answer is correct in this case. It's not as if you are losing directions though, it's just that all possible geodesics from a given point are inevitably curved back towards the center. From what I have heard it really isn't about speed or momentum, space is curved in a way that there just isn't a path out. I don't think it is correct to say that you are losing dimensions.

>Hawking said he's pretty sure event horizons can't exist because muh thermodynamics
...You mean the guy who came up with Hawking radiation that entirely depends on there being an event horizon which can prevent pared particles from annihilating?

[Citation Needed]

Aside from Hawking radiation, black holes don't emit anything - but they can form energy accretion disks as matter is accelerated around them, and all of that which ends up on our side of the event horizon, yes, is quite bright (see also: quasars, the brightest things in the universe), but that which falls beyond said horizon is gone for good. (Or, at least, from the moderately sized ones on up, gone for longer than matter in the universe has time left to exist.)

I guess referring to some shit that came up while they were figuring out the information paradox. I think some of the models or whatever kinda made the event horizon into more a blurry boundary insted of a fixed line. But the Journalist ran with it as Hawking getting rid of the event horizon.

He is totally wrong though. Hawking doesn't doubt event horizon exists.

well yeah it's not a perfect metaphor I was just trying to help you visualize it, it's like a 4d lens that goes in all directions
here I drew a picsher

Yea, get the concept, but I dont think its totally valid. I think the direction arrows on your paths could be reversed in all of those cases.

I mean, sure, people keep saying its not the case in a BH, but I'm just trying to get a better grasp of why other than: "it just is that way it is"
From what I understand of how light works, and GR space time geometry, light path should still be reversible.

I obviously don't know enough here, but i never seem to get great answers to these questions when I have looked.

You are assuming there is time reversal symmetry. I don't know if this is a valid assumption since I haven't studied black holes in depth but remember that time is being warped as well so the intuition that you could just reverse the whole system isn't necessarily well placed.

I think they also lose energy through gravitational waves

This implies photon inside the event horizon can escape if they started closer to the edge. That's wrong. Photons can't travel outward at all.