At the convention held in Baltimore, Maryland, F. W. Franz gave the concluding talk. He began by saying: “Just before I got on the platform a young man came to me and said, ‘Say, what does this 1975 mean?’” Brother Franz then referred to the many questions that had arisen as to whether the material in the new book meant that by 1975 Armageddon would be finished, and Satan would be bound. He stated, in essence: ‘It could. But we are not saying. All things are possible with God. But we are not saying. And don’t any of you be specific in saying anything that is going to happen between now and 1975. But the big point of it all is this, dear friends: Time is short. Time is running out, no question about that.’
Why do you feel it's appropriate to conclude to that the Watchtower was speculating? Does this sound like speculation:
"If you are a young person, you also need to face the fact that you will never grow old in this present system of things. Why not? Because all the evidence in fulfillment of Bible prophecy indicates that this corrupt system is due to end in a few years. Of the generation that observed the beginning of the "last days" in 1914, Jesus foretold: "This generation will by no means pass away until all these things occur."-Matt. 24:34. Therefore, as a young person, you will never fulfill any career that this system offers. If you are in highschool and thinking about a college education, it means at least four, perhaps even six or eight more years to graduate into a specialized career. But where will this system of things be by that time? It will be well on the way toward its finish, if not actually gone!" Awake!1969 May 22 p.15
Sorry El Piro, but this not mere speculation it is a declaration to the Watchtower youth that they would never grow old.
Why do you think they said this? Why would they overstep their bounds so blatently? It is because they needed the youth to have no doubt in their mind that they would see the end.
It was a sales pitch, my friend.
-Sab