If a deep hole opened up, would humans get crushed by the pressure?

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Let’s say hypothetically a giant hole suddenly opened up that went super deep into the Earth’s mantle or even its core. Let’s also ignore the fact that it will be scorching hot and filled with lava or water. Let’s just say it opens up, it’s dry land, and we start exploring it. I know that the atmospheric pressure would be greater. Would it be similar to the sea where the body would eventually be crushed at a certain depth? And would explorers be required to do something similar to how deep sea divers decompress when they ascend?

In: Physics