lomapaseo ...
I once took an 8 oz styrafoam coffee cup and wrote some words of prose on it and sent it down 15000 ft on a dive. When it came back up still attached to the submersible it was the size of a perfect sewing thimble with words that had to be read with a magnifying glass. Of course it would sink like a rock after that.
A very succinct description of what pressure does. Everyone should think about it.
mm43