Traditionally, the future seemed remote, a distant, undiscovered country, be it the afterlife, or a return to Eden, or some utopia or dystopia or time of wonders.
Modernity brought the future closer and closer, and we can actually study the history of the future, that is, the history of conceptions of the future, which would include assorted science fiction scenarios.
During the sixties, things seemed to be changing so rapidly that there was a sense that the future was collapsing in upon the present. Alvin Toffler famously wrote about "future shock," which took the concept of "culture shock," which is based on traveling in space, and substituted time in its place, so that the future suddenly appearing in the present results in an effect similar to culture shock, a sense of alienation and disorientation.
Neil Postman, in his book of essays entitled Conscientious Objections, claimed to have coined the phrase, and perhaps Toffler took it from Neil, although it is also possible that he arrived at it independently. Whatever the case may be, Toffler was the one who ran with the concept in his book of the same name:
This is a little known documentary based on the book Future Shock by Alvin Toffler.
See review here:
This movie came out in 1972 and features Orson Welles as the narrator. I was most amused by the high amount of paranoia in regards to the future... some of the segments (like people choosing their own skin color) are downright hilarious. Worth a look - at the very least for its historical value.
As far as I can tell, this documentary is in the public domain.