Changing everyones genes so we are all a lot more tolerant of each other and so bigotry is wiped out. Also we need much, much faster transportation, like train

Changing everyones genes so we are all a lot more tolerant of each other and so bigotry is wiped out. Also we need much, much faster transportation, like trains that can travel around the world in 3-4 hours. This way we can see our "neighbors" much more often and no longer have a sub-concious fear of the unknown.