It also has (presumably) unforeseen consequences such as making EA Arco's philosophers a very dubious choice now. Yes, their research rate is high, _but_ they start old. Priestess's start with a good 30 years to go before hitting old age.
So, let's see - why would I want to recruit philosophers who die of old age, instead of priestesses? And yes, I noticed this in my very first game : philosophers were dropping like flies from age.
Secondary side effect of aging : a quick test makes it look like _all_ units have Christmas birthdays, ie, all units age in Late Winter. So - want to buy a mage on the cusp of old age? Buy him/her in early spring to have more time before aging. And don't _EVER_ buy in mid-winter, or you may be bitter.
