Society is advancing faster as a result of scientific/technological advancements. Education, political awareness, freedom of information. These things affect the rate of change in a society. In the past 10 years social opinions on racism, lgbtq+, mysogony etc have changed massively. To deny the rate of change has been impacted is simply incorrect.

Also, the question is not referring to societal development specifically. It was asked in a much broader sense. Is the future 100 years from now harder to predict than from 1250 to 1350? Yes. The length of the cycles are changing and/or the patterns observed in these cycles are changing.