Own said:
The main problem is that no investment in a tech can get any monetary return, since every AI knows every other AI.
I doubt this holds. Most civs may know many of the other civs, but I doubt all. I can't tell on this map or Sid maps in general, but I believe I've sold a contact or two on standard pangea Deity maps, and I know I've sold several contacts on Deity Huge *true* pangea maps.
I like the idea of researching Engineering. The religious AIs might ignore it in favor of Theology and everyone else might ignore it in favor of Chivalry. If we can catch up by Theology, I favor going Education-Banking. If we catch up by Education, I favor going to Banking first (by the way, I don't anticipate either happening, which implies capturing the Great Library). Going the MT path slows down the tech pace, as the AIs tend to favor almost every militaristic tech on that path, with the exception of perhaps Chemistry and Engineering. The sooner we enter the industrial ages, the better tech-wise, since we all know about the Nationalism-government funnel that slows down the AIs, and they usually have tons of gpt around this time also.
If not Engineering, then I'd favor Monotheism, since fewer AIs favor it currently, potentially allowing for more trading opportunities (and to give the Celts time to cheapen Feudalism for us). Shutting off research or doing min scientist doesn't help anything so far as I can see. In fact, I'd say it wastes beakers of our GA. Production also gets calculated before commerce, so a library that gets built on turn 2 of research can actually lower tech time on turn 2 instead of on turn 3. Heck, if I want the Republic slingshot with an Alpha tribe on Deity, I'll start with max research from turn 1, even though it reads 50 turns, because I get the beakers in earlier that way. If we can get any decent trading opportunities with Engineering, we really need to get there ASAP.
Overall, I feel very frustrated by our tech situation. We had a plan that I thought we all had agreed on (Own and I seemed enthusiastic at the time and no one else seemed to say much)... that we try to get a near-by neighbor to build the Great Library for us, so we could capture without too much difficulty. But, we didn't even attempt that plan, and canned it last minute. I still wanted to try that plan, Own had second thoughts, but I thought he felt indifferent, I. Larkin didn't like it (since he canned it), and I can't tell about Bucephalus's opinion. In other words, we didn't have a consensus either way... so far as I can tell. I'd rather play this as a team game than just hand off saves every X turns.