It is possible that a scientific discovery will be made that humans will later regret because it has awful consequences. The problem is, we probably would not know in advance and, once the discovery is made, it cannot be undiscovered.
“Canada was my whole world and my whole reality, and now I meet people who've never been there, and it's like, 'You've never been to my whole world?'”
“Half the people in Hollywood are dying to be discovered and the other half are afraid they will be.”