Are black holes actually black or even holes?
No and No.
Well, they’re *nearly* black in the sense they radiate an incredibly tiny amount due to quantum mechanics. This is known as Hawking Radiation, and it means black holes have a temperature. A very low temperature yes, but a temperature nonetheless.
They’re not holes, but more like spheres of extreme gravity around the centre.
You always see 2D funnel like representations because that’s easy to visualise, but in reality they are more like spheres that warp and compress spacetime around them.
Note that you may not know that you’ve entered the event horizon of a sufficiently large enough black hole (and by sufficiently large I mean supermassive or even a larger hypothetical black holes).
Once you’re past the event horizon you cannot get out again, but the tidal forces won’t rip you apart until you’re closer to the singularity.
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