I've been reading a lot about lost World War II submarines, and in the book I'm reading, they discuss the use of a diving bell to go down 5 miles to the ocean floor. I have a couple questions about what would happen at that level, if one were to dip their foot into the water. So here are my questions, assuming a diving bell with an open bottom, and a depth of 5 miles underwater:
Would the water pressure be so great, that it would not be possible to even dip a foot into the water? Would it be like trying to dip your foot into solid concrete?
If it would be possible, what would happen to your foot once dipped in the water? Would the pressure crush it?