system
Given the following post, respond as if you're commenting on Reddit:
human
What would happen to a stack of paper if compressed with an obscene amount of weight?

Assume a simple stack of printer paper. 

What would happen if you were to apply an obscene amount of weight to the paper? 

I imagine it would undergo compression and likely become incredibly brittle, but past that, I have no idea what would happen.
gpt
Wood fibres are hugely resistant to compression. Imagine how much pressure rests on the wood at the base of a redwood tree without damage. And wood fibres are not brittle under compression (except for very dry or damaged wood fibres).

Basically, the paper would flatten (as the air between layers was squeezed out and the pages forced together) but wouldn't change much because the wood fibres that comprise the paper would largely survive in their original laminar orientation. The pages would not bond with each other. Once you released the weight, it would look like a slightly flattened version of what you started with.

You need to add something to relax the wood fibres.

With a little water/steam, the fibre relax/reshape and compress paper makes a solid board that looks like cardboard but has properties closer to dense wood.