Our biggest loss for now is the 225g to learn all 3 tasks, those gold could be used to speedup economical techs. The cheap bulb of the Math let us safely land the Oracle and develop cities faster, maybe still some loss. We probably lose 1~2 turns for the final result. Not a big deal if we could make the right decision in the rest of the game.
I have thought about the strategies again and we probably need to a completely change. The thing that does not change is more cities, mainly from conquering.
1. Keep the original route. The merit is the fast war paces and being able to take the wonders(GLH and mids) and resources(Stone and Marble) we want early. The bad thing is that many of the intermediate techs could be traded otherwise and we also deviate the economical tech tree such as CS and Edu.
2. Traditional economical route. CoL->CS->Edu. Wait for Construction and
focus on digesting our own continent. The pros and cons are of course opposite of route 1.
I like current path more since it allows us to influence the entire map and we can take better and developed research cities earlier. We don't have enough of cottages and we also lack +2 trade routes per city (GLH) to make Universities and Oxford worth their while. Those resources can take better research cities, as already mentioned. We can probably get stone earlier with Astro to make Oxford cheaper. Specialists will have to do. I still dream about Mids, though. They would pay for themselves in a long conquest game, even without stone.
The Corn site (6th) is a good site for gathering original SOD with chops. The 7th city should be either the Iron site (if necessary) or the south Fish/Whale site.
The things that I'm not clear is whether we want academy (prone to not have it). Another thing is that shall we research Construction ourselves or wait for trade.