Observing a Collapsing Shell: Time Dilation Explained

In summary: After that, the curvature is everywhere inside the shell. There is no shell observer inside the black hole. There is no inside the black hole. It's a single point in spacetime. That's why it's called a "singularity".In summary, an observer inside a collapsing shell would see the rest of the universe appear to be distorted and time dilated as the shell approaches the Schwarzschild radius. Once the shell passes the Schwarzschild radius, the observer would not be able to detect any local curvature until the shell passes in the other direction. As the shell contracts, the observer's clock would appear to slow down compared to clocks attached to the shell and at a great distance.
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blademan9999
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TL;DR Summary
Observer inside collapsing shell problem.
What does and observer inside of a collapsing shell observe? Lets say we have a shell of matter collapsing to a black hole. What would observers near the center see? How would the rest of the universe appear when,

The shell is approaching the Schwarzschild radius?

After the shell passes the Schwarzschild radius?

Time Dilation inside a hollow shell According to here you get time dialation, so what happens as the shell contracts?

Say the observer has a clock, and the inside of the shell is like a mirror, theres a clock attached to the shell and finally there's a clock at a great distance. How fast would these clocks go relative to eachother?

Until the shell reaches the observer, the observer is free to move aorund, so the issue to me seems to be that whe have a shell observer inside of a black hole, which normally you're not supposed to be able to have.
 
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See https://www.physicsforums.com/threa...of-a-singularity-before-it-is-formed.1017274/. A lot of your question is answered by that. Basically, the event horizon forms inside the shell and expands outward at the speed of light. Once it passes you (you can't detect anything locally as it does) you're doomed. You just don't see any local curvature until the shell passes you in the other direction.
 
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