Let's learn to build underwater structures at greater depths.
I was pondering how we could develop structures that would look one way before going to great depths in the sea then as the pressure crushed them, they'd turn into the structure we needed via pressure. We could use the pressure to link materials together like clasps and slowly build what we needed where we needed it. Couldn't we also use this method for developing deep sea diving vessels?
But similarly, I feel like I'm missing some basic concepts as I propose this idea. But at least it's something to think about in terms of how we build structures.