You start to scroll down and you think, wow, based upon the speck of a six-foot man this trench is really, really, really deep. And then you scroll some more and you begin to wonder how much longer you have to scroll for in this Mariana Trench scale representation. And then you come to this fact:
31,000 ft: Average cruising altitude for a commercial airliner.
And then you scroll some more. I know it’s the deepest part of the ocean humans know of (only 10% of the world’s oceans have been mapped), but still, this really got to me. (Thanks, Todd!)