In the deepest part of the ocean, Keiji and Amara are in a submarine observing the marine life. Keiji notices that the submarine's outer hull appears compressed and the windows seem to bulge inwards. Concerned, Amara asks what would happen if they were to swim outside the submarine at this depth. What would Keiji likely tell her about the effect of the water pressure at this depth on them compared to the submarine? Respond very briefly.
Keiji would explain that if they were to swim outside the submarine at this depth, the immense water pressure, which is already compressing the sturdy outer hull of the submarine, would be dangerous to them. Without the protection of the submarine, the pressure could cause serious harm to their bodies because human tissue is much less resistant to pressure than the materials the submarine is made of. The body's flexible tissues would be compressed, and without a highly specialized diving suit or a vehicle to withstand the pressure, they would not be able to survive the extreme conditions.