Engineers just drive you nuts. Whenever you come up with some clever idea, we tell you it's impossible. We then spend the next ten hours complaining about all the things in the world that could have been designed better, but weren't. We thus combine the very worst of optimism and pessimism: "The entire world can be perfected, except for anything you suggest to us, which is totally wrong and actually kind of stupid." If only engineers could be flipped upside down and shaken vigorously, perhaps our bad impulses could be reversed. Perhaps we could become encouraging brainstormers, instead of nagging naysayers. What WOULD engineering be like in a world where anything was possible?
For starters, we would certainly have an easier time dealing with living below sea level.