OK, here is the turn-by-turn guide to my last test game. I'm sure it could be improved, so fire away
Turn 27: Worker1 starts copper mine, start to research fishing. Settler is building.
Turn 30: Mine completes BUT city works gold & cows - governor will try to switch away from gold so manually adjust.
Turn 31: Fishing completes, writing starts. Move worker1 to forest/river tile by capital (good chance of forest growing back again so first choice). Second warrior is waiting to escort settler.
Turn 32: Worker1 starts to chop.
Turn 34: Forest chopped.
Turn 35: Worker1 moves to forest/river/hill square.
Turn 36: Worker1 chops.
Turn 37: Settler built and moves off towards military escort & chosen site. Work boat started. STOP WORKER before ending turn - we don't want the forest next turn.
Turn 38: Worker1 mines for 1 turn. STOP WORKER before ending turn, we
do want the forest next turn

.
Turn 39: Worker1 chops forest.
Turn 40: Work boat builds and works clam. Writing researched, Mysticism started. Library started. City works clam, gold and cow, NOT copper. Worker moves to forest/hill/river square.
Turn 41: Worker 1 starts chop. Second city founded, starts to build worker2. Research rate drops to 80%. Note to self: We are producing +1 at 80%, perhaps later in the slingshot process we can use this to boost research at a critical point.
Turn 43: Forest chopped.
Turn 44: Mysticism researched, Meditation started. Library builds, Henge starts.Worker moves to nearest forest square in second city big fat cross (remember, borders are about to expand).
Turn 46: Second city borders expand. Cities start to trade. Increase research rate to 90%.
Turn 45: Capital grows to size 4. First scientist specialist. Continue to work clam/cows/gold.
Turn 48: Meditation researched. Priesthood started.
Turn 49: Worker1 chops forest at second city.
Turn 50: Worker2 built, starts pasturing horse (or cows, or whatever). City2 starts library. Worker1 moves back to nearest forest square at capital.
Turn 51: Priesthood researched. Maths started.
Turn 53: Horse/whatever pastured at city2. Make sure governor switches.
Turn 54: Worker2 moves to best choice of forest square at city2. Worker1 chops forest in capital.
Turn 55: Worker2 starts chopping. Worker1 moves to next best choice of forest square. Capital grows to size 5. Second scientist specialist. Continue to work clam/cows/gold.
Turn 56: Worker1 starts to chop.
Turn 57: Worker2 completes chop.
Turn 58: Worker2 moves to pig (or whatever is the next best resource food-wise). Worker1 finishes chop.
Turn 59: City2 builds library, starts workboat or whatever. Worker1 moves to new forest square.
Turn 60: Henge completes, Oracle starts. City2 grows to size 2, 1 pop transferred to science specialist but city not starving. Worker1 starts to chop.
Turn 62: Maths done, Code of Laws starts. Worker2 finishes pasturing pig or whatever and city2 is growing like the clappers. Worker1 finishes chop.
Turn 63: Worker1 moves to new forest. Worker2 does something useful

Turn 64: Worker1 starts to chop.
Turn 65: Great Scientist born, academy founded.
Turn 66: City2 now has loads of food stocks so run second scientist and starve city. Research now so jolly brilliant that we move from clams to copper in the capital as we need that Oracle! Worker1 completes chop.
Turn 67: Worker1 moves to a new forest.
Turn 68: Worker1 starts chop.
Turn 69: BEFORE ENDING TURN, STOP WORKER1 FROM CHOPPING!!
Turn 70: Worker1 does nothing. Or starts building a mine, depending on the square but in either case all worker1 actions must be cancelled before the end of the turn or we will be in deep trouble
Turn 71: Worker1 finishes the chop.
Turn 72: Code of Laws is done, probably start Masonry with an eye on the Mids. Confucianism is founded, the Oracle is built, Civil Service is discovered for free, Bureaucracy (and maybe one other civic of our choice) is adopted, we adjust all cities to avoid the pointless loss of thousands of lives and there is General Rejoicing All Round. The Geezers appoint someone to buy The Third Round of Beer.
I ended up with about 5 gold in the bank and could have run 100% research for 2 turns towards the end, but in the test game it wouldn't have made any difference to the date. In the real game, it might be different so we should at least check this.
I try to choose forests in a way that (I think) gives the greatest chance that they will grow back, or by clearing hills (esp on rivers) where we will want early mines. I don't know whether there is any secret to chopping in order to get the greatest chance of new growth, apart from the obvious not devastating complete areas?
Anyway, there it is. Turn 72. The best I've seen the AI do in the test game is turn 74, but in the real game they are researching faster (Hinduism came up 2 turns earlier) and then we may of course be up against a load of industrious civs. Look away now if you don't like
I am absolutely not going to point out that, if we were to research Code of Laws before maths then, with heavy pre-chopping and a somewhat different game plan, we could build the Oracle on turn 65 or so. Which, totally coincidentally, is when the Great Scientist appears and can :shudder: bulb maths. I'm not going to mention this because, obviously, we wouldn't sacrifice a *very* early academy for bureaucracy, not even if we could get another Great Scientist really rather quickly in city2 if we put our minds to it and get a *reasonably* early academy. The reason why I am not going to mention this is because only a craven coward with no sense of fun would reject the opportunity of playing the Grand Gamble in favour of an Almost Sure Thing.
So that's why I am totally silent on the subject
