system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can't we explore the oceans' floors? What technological advance must be made to make it possible?

I know the pressure is great, but it seems like we would have found a way to counter that by now? Maybe I'm just very much underestimating the amount of force that the amount of pressure at the ocean floor would cause.
gpt
Everyone else here has explained the difficulties regarding the water pressure.  However, nobody has mentioned a key point: your title asks why *can't* we explore the oceans' floors.  We can.  We have been to the deepest point in the oceans, twice.  We have vehicles, both manned and unmanned, that can explore the ocean bottom.

However, it would be very hard, very slow, and very expensive.  Exploring the ocean floor is like exploring the moon - we *can* get there, but people have decided that they want to spend their money elsewhere.