Our Existence. . We live in a exquisitely dependent on science and technology, in which hardly anyone km: rws anything about science and Carl Sagan. it's called specialization.. if we all had to know everything about everything, the world would be filled with nothing but schools, stressed out people and waaa Our Existence We live in a exquisitely dependent on science and technology which hardly anyone km: rws anything about Carl Sagan it's called specialization if we all had to know everything the world would be filled with nothing but schools stressed out people waaa