> 6000 m: "More people have been to the Moon than the Hadal Zone." I wish some bored billionaires would take up the challenge and pump their billions into deep

> 6000 m: "More people have been to the Moon than the Hadal Zone." I wish some bored billionaires would take up the challenge and pump their billions into deep sea research. Like some others do for space exploration. > "So little is known about life in these deep environments. Almost every expedition uncovers something new."