Maybe I'm wrong and somebody please correct me if I am but it seems like the nw (and thus nw/a) that science gives you (scientists now, books ages past) becomes meaningless the larger you get. Whereas, if you are quite small, it may amount to an extremely large amount...
This seems like a reversal from how it was in the past, where the effects given from science were based on acres. So as you grew, u needed to keep up your ppa, and thus nw (and nw/a) that you were 'spending' in order to get those effects.
Based on last age changes where Bishop said that 100 professors would amount to about 44k nw, and how this age 146 professors will get you max sci, that's (maybe) around 64k nw. If you are 2000 acres with max sci, at a wimpy 250nwpa all those lovely effects are only costing you 32nwpa. But if you are 1000 acres with same scientists and same setup, those same effects are 'costing' you 2x the nwpa.
(math could be wrong I dunno, I'm somewhat confused at the moment).
Is this just obvious to everyone and I am over-reacting over something simple? Seems like an interesting mechanic change that I've yet to really figure out the full implications of...