"Demos" are worthless. All of them are rigged, and often have only limited correlation to the actual game. Also, they offer absolutely no reason why you'd actually want to buy the game at all: If you liked what was in the demo, why would you buy the game, if it is already in the demo? Conversely, if it is not in the demo, then you have been told nothing about it, and therefore, the demo is worthless.
The AI grossly overvalues anything you try to get from it, and frequently undervalues anything you offer it. Only on rare occasions, will the AI actually be willing to sell you a technology at all. More frequently the AI will inexplicably declare his complete unwillingness to part with a completely worthless technology, and NOTHING you can offer him, not even your entire empire, will persuade him to agree. I have found that AIs frequently stonewall like this, to the point where they refuse to ac
I think Xenocide is referring to the fact that when you trade with the AI, it always occurs on your turn, so that you can immediately turn around and resell the same technology before the AI can. Of course, I don't see why this is an advantage at all, given that the AI already had his chance (as he had the technology before you), and declined to do this (or already did). The AI displays an extremely curious reluctance to sell ANY weapons technology, however. It baffles me as to how the
