First I'd like to summarize what we discussed:
1. For the plan of the next 30~50 turns, it is very likely that we are gonna maximize the strength of our leader(Philosophical) and the resource we have (stone)
(1) Research Currency and Code of laws, get the 2nd Great Scientist and finish The Pyramids
(2) Start a golden age and switch to Cast system, Representation and Confucianism
(3) Get the 3rd Great Scientist, research Civil Service and switch to Bureaucracy, Pacifism
(4) Beeline Education with 2 more Great Scientists.
(5) Complete University of Sankore and Oxford University
2. Basically we are gonna continue to explore toward Northeast
3. We need to settle the potential 2 islands to our West and North, so we need a galley ASAP at our 3rd or 4th city.
4. We need to prioritize The Pyramids at Capitol.
Then I will list some of my Q&As.
Question 1: How to spread the religion if we don't have Organized Religion?
My preference: We need to get Monotheism before our golden age ends.
Question 2: Is it still possible to get into war without Slavery in the next 50 turns?
My preference: I doubt we have any chance to use Slavery if we beeline Education. We are not Spiritual. The AIs are also too far to attack
Question 3: When to settle the pig city?
My preference: It should be later than the island cities, but earlier than the attack time.
Question 4: When to attack the barbarian city?
My preference: If we have too many hammers, we can put some on Dog soldiers. Use warrior to lure those garrison out of their city and hit the final strike with our Unique Units.
Question 5: Can we not research? We can put our overflow hammers for failed gold this way to benefit from the stone.
My preference: If possible, use it. For example, when the capitol is not building the Pyramids, we can plan a maximum overflow of other cities into the Pyramids. In this way, we'll have more gold to boost our economy.
Question 6: After The Pyramids, we may need to put our overflow hammers to any wonders that we are gonna complete. How about completing Moai at one of our island city? However, we have to remain at Slavery for this strategy.
My preference: I don't think it's possible in the next 50 turns. It requires Slavery.
Question 7: Shall we remove the jungle of pigs, chop 4 trees and mine 4 more green hills?
My preference is based on the calculation below:
1. We have 43 forests/jungles at our initial zone, 38 forests more on the rest continents and 9 forests on the Germany continent.
2. The odds to grow forest is now 4.2% and 33.6% with Reserves. Based on this estimate, 4 more trees may grow during T76~T175 and 1 tree may grow every 3 turns during T175~T190. We are gonna have 9 more trees if we don't chop any more. (Let's target our finish date at T190, aggressive but this is the way I play
)
3. If we do the above, the odds can be almost unchanged if we chop the tree 1W of the capitol. It's 4% and 32%. Therefore, finally we'll still have 48 reserves at our initial zone.
Therefore I'm green to chop more and mine more to expedite the Pyramids.
Question 8: If there's no horse/iron/copper, how can we start our war after we have Astronomy?
My preference: It is not a big problem since we are protective and our unique building can support stronger ranged units. We can attack with Longbowman or Musketman. Therefore, we can start the war after we have Astronomy. It is more profitable in my opinion.
Question 9: What if we can borrow horse from either Darius or Stalin?
My preference: If this is the case, I think we can steal one or two Darius cities and chop some catapults there to conquer him. No rush. Just to use the production that has no good investments.
Question 10: Do we need to explore toward west?
My preference: If possible, do it. We may have faster work boat and galley either for connecting resources just in time or for classic war.
Question 11: How about the music line? Should we go for it?
My preference: We may need it if the second golden age is needed to switch our civics. We can decide later about the timing.
Question 12: Is the capitol good enough for Oxford University?
My preference: If we can take the capitol of Persia, that should be better. This may make me think more about a galley chain to transport our units.
Question 13: Do we need to keep to possibility of Religious Victory?
My preference: We can keep an eye on it. Somehow we may get religious victory in the progress of conquering the world. Vote, switch to environmentalism and influence civics at the same turn.
Question 14: Shall we adopt Cast System or Slavery when we exit the golden age?
My preference: Slavery. We have 69 food surplus with 10 cities. With library, we can already spend 40 food surplus in specialist. The rest 29 can be used for war. On the other hand, there's no good investments in the Astronomy line, so we'd better put our food else where, yes on Persia and Russia, for their flood plain, forest, marble etc.