Yes, the big shift is what I am interested in here, We moved from using living creatures to using machines like cars, but what's next after machines like cars beside flying cars(its still a car) that will mark a huge step for mankind in terms of transportation. Something that is not a car, not a flying car, not a plane, or electric plane, something along the lines of bio-engineering or teleportation. That will rock
But we almost came close to destroying earth with atomic bombs several times , I mean surely it cant be that hard. Yes we can devote some of our efforts towards making earth a better place to live, but we will always have problems here on earth, every now and then adventure will do us good.