Why are Sages fair? Opinions wanted!

[Chazar]

Boron said:But in Dominions 3 with the new feature age sages are probably already 80+ years old and die after around 30 turns so they are not anymore a nobrainer there i guess

Hmm, how do you get all those 80+ year old sages if 12 turns are a year? So the conclusions is that a library burns out after a certain number of sages have been recruited, right? Now that would also limit the sages...

Edit: Clarification: The library runs out of recruitable sages because there are only people below 60 in the province left. Since 12 turns are a year, the population wouldnt age fast enough to produce further 80 year old sages anymore...I am joking!!!