I have grabbed some of those high end techs with liberalism, but I don't often go for anything more advanced than Steel anymore, and there is a good reason. If one is planning to adopt Free Religion, then delaying liberalism has an opportunity cost of 10% of the scientific output of the empire.Nationalism is the "easy" call and what I assume to be a common goal for Libbing - especially if you're going for that early pre 500 AD lib where little other goals are available.
If you have full knowledge of what the enemies are teching and how fast they're getting there, it's useful to research lib to 1 turns from ready and then pursue other goals. Steel for one can win you the game right then and there if you get a decisive monopoly edge on it and is something I occasionally go for. For other more fancy Libs, there are Assembly Line, Biology and Democracy to consider - all of which I would pursue in select scenarios if the situation allowed for it.
Granted, the aforementioned scenarios are few and far between and for the more common libs I'd say PP/RP/Nat
If one is planning to adopt Free Religion, then delaying liberalism has an opportunity cost of 10% of the scientific output of the empire.
True, and the overall effect of the FR benefit is variable based on a large number of factors. Even if you consider that the gross effect of the bonus is as low as 3% (and only civs that get a large majority of theirNote that free religion only gives +10% to the base beaker output of the city, not to the total. That's a very marginal contribution, especially if you have other multipliers like Academy and Oxford done already.
Here's one I played today that could have done that, in all likelihood. A good map for someone trying to beat emperor for the first time, but not for emperor players looking for a challenge. (except maybe to see what the best tech is you can get for liberalismAre there any Emp+ games on the forum that took Lib-Assembly Line? I'd like to see that.