I am not a physicist, I am a enthusiast trying to understand thinking behind "Holographic Principle" by Leonard Susskind. Recently I saw program on DS Through the wormhole - The riddle of the black hole, there was one analogy about Bob and Alice near black hole.
1) First they were in the space ship near black hole and Alice jumps in. Bob sees her getting closer to black hole but slowing down and frozen near event horizon. But from Alice's point of view she falls in the black hole passes event horizon with no traces at all.
2) Second time they each have an aeroplane with String theory propeller. Alice flies through the black hole and meets the same horrible faith. She could only see central hub of her propeller. But when Bob approaches black hole he could see increasing number of propeller.
I have few questions about above analogy
1) In the first analogy: Bob sees Alice frozen at the event horizon, If this is true why don't we see stars revolving around black hole slowing down when they approach black hole at the center of our galaxy? (I am talking about observations that indicate Black Hole at the center of our galaxy with stars revolving around it, which show stars speed up while they approach black hole)
2) In the second analogy: Does the propeller indicate vibrations of atom? If so why Alice does not see more propellers as she approaches event horizon but the Bob sees it ? Also can the plane without air in the space or it was just to imagine atom to propeller ?
Here is the video on the you tube