*Shrug*
We can get CS by t110, and Calendar t108. Question is...how much do we help Cav and Kaz by trading away Fued? What do they have to tech? They'll be left with Drama, Music (Kaz), Paper, Philosophy, Theology, HBR, Machinery, Compass. And how fast are Cav teching? Will Cav tech Fued, or will they let their slower partners tech Kaz tech it?
And why are MS offering us a tech that gets us closer to maces? We don't need them with war eles available, but parking a mace on a forest is always a nice way to play defense.
On the surface it looks to be just about acceptable, but what are the consequences of doing the trade? We don't need CS for a few more turns, but what is it worth? Saturn want it but they have a grand total of 2 cottages in their cap which is size 7, so they don't massively need it either, regardless of what they say. I think if we got CS next turn and revolt next turn to bureau and serfdom, we'd get an extra 130ish commerce compared to getting CS on t110
I don't think we'll lose the trade if we ask to add Calendar in; they approached us, they want fued. Calendar isn't an expensive tech, and offering 200 gold extra will speed up their next tech by a fair amount.