Not a direct question from the game.

[Future Esthar]

EDITED BECAUSE THE PREVIOUS AFIRMATION WAS FALSE.
Let me explain the definitions.
Range of time compression:
It´s the set of eras that were compressed,not the time during wich time compression is activated or during which people feels it´s efect.
The sorceress decides to activate it in 1000 and to stop it when 500 years has passed on all eras.In the end of time compression people which were in the year 1000 are on the year 1500 obviously.(People who were in 1345 will be in 1845,etc...).
The question is that the time interval during which she decide to compress time(1000 to 1500) is not the same as the one during which the world is at the brink of time compression.(i.e,the cause is different from the efect).