I got a 1915 victory! woo and hoo!!
I tried the "keep all your forests and zoom to the NP" strategy. Had a start with corn, 2 pigs and 3 FP's, plus a gold. Was able to trade for stone later and marble later later, but missed taj mahal by a turn anyway.
Picked Isabella, Mansa, Sitting Bull and Napolean over and above the required ones. This really helped keep AI's from running out of control - there was nearly constant wars, but no one got anywhere until Mansa rolled Nap.
First GS in 1600 BC
Oracle in 1320 BC
Pyramids in 625 BC
Glib in 350 BC
Liberalism got me physics.
At my peak, I had 10 forest preserves, 22 scientists in total, size 26, 15 settled GS, plus the GM, GS and a couple of GE's.
Once I got my tech done, I switched to state property and spent a couple of turns finishing workshop and mine pre builds on the forests. Nothing like 1656 hammers in one turn
Several civs built apollo - no one built a part.
Mansa built the UN, but never had more than 1/2 the votes he needed. I had to defy a bunch of resolutions on global civics, though.
Mansa was about 15-20 turns from a culture win when my SS got to alpha centuri.
I flipped at least 2 AI cities, I think 3.
What I think the keys were:
1) Lot's of civs
2) No vassals
3) Tons of food and not worrying about towns
4) Not trading for everything as soon as it was available. This probably cost me a bunch of turns in end time, but I managed a win
What I'll do different next time (if I try again)
1) Make sure I have stone or marble, which gets you pyramids/Glib/Nat Epic faster
2) make sure I have chemistry before I go for liberalism->physics
3) Be willing to make some more trades for late game techs.
4) Put my citizens to work right away when I get my nat park up - I didn't right away, so it took longer to get up to size 26 that it really needed to and probably cost me taj mahal
5) research calendar myself to get MoM.
6) Time my GA better for civics changes.
7) Think through the trade off between settling and bulbing. I used my last scientist to cut a turn off of a modern era tech, which was the right call - I didn't need the hammer and I got more beakers from it than I would have from settling. I might have cut off some more time had I bulbed before.
Winning was fun
For those who are trying and getting frustrated:
I have found that Oracle sometimes goes very early to the AI - as early as 1800 BC!! There's nothing you can do then, if your strategy is Oracle. Actually, Oracle isn't vital to this game (Flourescent didn't build it) though Pyramids probably is.
I don't know if how a cottage economy does in comparison. Probably similar - fewer GS, obviously, but a town on a river gives more science than a scientist, and that's before printing press.