So here's a final overview. (Yes, I'm at Future Tech 14 while the AIs are at Steam Power.)
In 1886 AD, the land percentage is at 63.77%, just one or two tiles shy of domination. So I go into end game mode:
Domestic advisor, with culture production:
839 in corporate maintenance, but my Wall Street corp HQ is pulling in 1188 gold from the corps.
Sampling of the corporation advisor: that's 10 food, 8 hammers, and 104 culture in each city.
GNP graph; that's just a slaughter. What's interesting is that it never levels out, or even dips at all with the corporations; it's a sheer straight line upwards as I kept culturally assimilating and developing more territory. Also interesting is the lack of impact of Golden Ages, as compared with the production graph where all three GAs are clearly visible.
Anyway, Domination Victory in 1888 AD. 40735 culture and 2672 science. 43407 points.
80746 Firaxis score on the first entry in my BTS Hall of Fame. Now let's go to the videotape:
From the replay, here's what I meant about culture assimilation. Here's my Portuguese border after the Viking war.
And here's my Portuguese border now. Not a single shot was fired! Joao and I were best friends the whole time, while my corporate culture ate over half his empire! Something is a bit too powerful here, I think...
Anyway, that was a fun game, and I don't at all regret the purchase of BTS to play it. I may share more thoughts on BTS in the Realms Beyond forums; stay tuned.