aelf said:
The problem with letting the AI get Space Elevator in a tight space race on higher levels is the fact that you might lose. Getting it yourself not only denies it to your rivals, it also allows you to outbuild them. After that, you don't build up gradually, you go all out researching all the necessary techs and building the parts as quickly as possible. And this strategy helps with research because, like I said, you can trade for Rilfing/Artillery instead of researching them yourself and then getting beaten to Radio/Plastics/Computers/Robotics.
I am not a Space Race guru by any means and it is not the victory type I regularly aim for, so I just ran a quick test of branching the techs to Computers as compared to aiming toward Rocketry and Satellites and I believe the Rocketry path to be significant in getting the ship built faster. Two reasons why:
1. No parts can be built until Apollo Program (Rocketry) is built.
2. Space Elevator can not be built without Satellittes (needs Rocketry tech!).
While it true that computers gives us Labs, there is now a long lag time to get Rocketry and then build Apollo. Of course, this is when one builds the Three Gorges, BUT, and this is the big but, along the other path, at this point you already have Apollow program built and have some cities working SS Castings WHILE you go back and research into computers.
I did find that the AI does get Rifling and Artillery and will trade, but I sat around for many turns waiting because of the Appolo Program Bottle Neck.
Head to head, I got Speace Elevator built in both scenarios, but it took less turns to build in the Rocketry Path although it did not come online until I had all the SS caings built and two other makor components.
I used Ottomans (Warlords), Noble, Large Fractal Land Mass, 11 opponents. I played straight through until the pathways forced a real split of research, then went back and replayed from a save and went the other tech path. Both Rocketry and Computers have a set of similar techs, but the big picture was that getting to Computers took longer because it put me through Industrialism and that path while the Rocketry path is a bit more straightforward.
In the end, one needs to get both paths complete in order to gain all the SS parts unlocked, but one path delays the construction of the Apollo Program and does not allow the building of the Space Elevator anyway because without Rocketry one cannot gain Satellites (Elevator requisite tech).
On the Rocketry first path I lauched SS at 1769 AD )Apollo Program built in mid 1600's) and on the computer first path I did not get Apollo Program built until 1730 AD.
Also: The Ottomans are great for SS races because they build HUGE cities and the underrated Expansive Trait counters that Health hit from Coal plants.