Slimboyfat,I enjoyed your comments.I felt the same.Extended period=short period of time.90 years=just around the corner=last hour.The kicker "the conclusion of the system of things and the end.Can be illustrated by a talk given at the Kingdom Hall.The talk is the last section which the speaker spends a little time.Q4 & 5 Talks about Jesus presence is an extended period of time.Just like their concluding prayers at the D.C. an extended period of time.
In our Hall,When they got to part "The Generation Seeing the Sign" it was covered very fast with few comments because they made sure all the time was gone by para 10.
Bob