A conquest loss can take fewer turns than a conquest win.
A domination victory, if you have tight enough of city spacing, might actually take fewer turns for an AI to win than for a human player to win. The human player's strategy I think would be to capture a large amount of territory, and produce settlers. Then when having maybe 40-50% of the domination tiles, give all those cities away to the biggest AI left.
For 20k, 100k type victories, spaceship, and diplomatic victories, I think that for the best players, the human player can win in fewer (or the same) number of turns than an AI can.
A domination victory, if you have tight enough of city spacing, might actually take fewer turns for an AI to win than for a human player to win. The human player's strategy I think would be to capture a large amount of territory, and produce settlers. Then when having maybe 40-50% of the domination tiles, give all those cities away to the biggest AI left.
For 20k, 100k type victories, spaceship, and diplomatic victories, I think that for the best players, the human player can win in fewer (or the same) number of turns than an AI can.