I'm having an ohmigosh-I -just-finished-ludicrous moment right now. Was not very fun at the end, mostly because the computer was too slow. But was fun at the beginning when you do all the exploring.
My manufacturing capital was cranking 5000 production per turn and could recruit a citizen every turn, without any mods, cheats or specialists. 4000 shipyard production, when the most expensive carrier I could build was only 2500.