Grom a GR point of view nothing ever really gets into the black hole from our frame of reference.  It all just smears out around the event horizon asymptotically approaching infinite wavelength.

From Hawking's point of view the entropy of a black hole is propotional to the surface area.  If you assume that the smallest quantum of entropy is a square plank length, then ... yeah, the bits within the black hole can be mapped to square planks on it's surface. 

Weird stuff.

From: jb55 at 09/09 01:23

> if you think about it the holographic principle is telling us that the universe actually running in a compressed format. There are way too many quantum states to simulate at once, so for the universe to run efficiently these states need to be compressed. The holographic principle makes this explicit: all of the information in the 3d bulk is encoded on some 2d boundary of this space. What happens when there is too much information in a small region of space and it can’t be compressed further? Boom, black hole. Neat hack universe engineers.
> 
> gn