"I just cannot see how spaceflight could be more important for humanity in the next, say, half-century than transportation."... 50 to 60 years is the difference

"I just cannot see how spaceflight could be more important for humanity in the next, say, half-century than transportation."... 50 to 60 years is the difference between 1904 and 1956. Do you really think your models of what space "exploration is" in 2012 will be the same in 2062?? In 2062 probably no one will commute to work. All transportation may be purely for socializing personally and travel or adventure. 2062 is so far away that even futurists consider it beyond their comfort zone of dreaming up stuff. How are you so sure of Mankind's priorities in another 50 years?