“This is how much we know about the ocean floorless than we know about the surface of Mars. “
Only an idiot would write such hyperbole.
We have Mars mapped. We don’t have a complete map of the ocean floor.
It’s a true statement.
Dunno why you say it’s hyperbole.
The whole “why are we exploring space when we don’t know all about the oceans” cliche makes my eyes bleed. While it might take a pile of energy to get out of the well, it’s a helluva lot easier to keep 14 psi in than 5 or 10 thousand out...