For those who read this, I'm not a quack, conspiracy theorist, etc... We all know the story of Atlantis. If not , then watch the Disney movie. Legends, epics, and oral histories from around the globe seem to emphasize that there was an undersea utopia somewhere in the Atlantic.The undersea "people" were more advanced than the cultures that referenced them and through all their advancement died off. All I'm wondering, could humanity try Atlantis2.0? Is it possible? What are some engineering, political, sociological, and "scientific" Challenges to the idea? (Money is not a valid answer). If we want to make a mars colony, why not experiment on earth first? Still too soon to try for Atlantis?