"This is a TERRIBLE IDEA
You should NEVER EVER have a game mechanic that can be circumvented by note taking.
If a player can circumvent this by just saving the game each turn and looking at the saved games (not even playing from them, but taking screen shots) then it is stupid and makes for boring pointless MM."
What you just explained is basically cheating, no one is really gonna take the time to take screenshots of their saves just to know what the map looks like a few hundred miles to the east. And if they do, thats just ********... Id feel bad about playing the rest of the game from that point if I did that.
And if they did, it could be explained historically. Maybe a descendant of the exploring party kept the locations of landmarks alive through oral tradition through his lineage for countless generations while the rest of the civilization forgot about it. Eventually maybe his bloodline found its way into the monarchy (or tribal despot) and there you have it, the entire civilization now has that knowledge again. This last paragraph is as unlikely as anyone actually taking the time to cheat as you expected them to.
They will, if the game takes away knowlege, because me "Remembering" something is not cheating.
Taking Screenshots is just an easier way of remembering.
This isn't a Test.
Actually the better suggestion is that Explores don't reveal any territory until they get back... yes, you must know where your explorer is in order to bring him back.
This should be true of ALL military units (on land) until the development of telegraph, and of all sea units until the invention of radio
Actually, you should not know what your cities are producing unless you send a messenger to them... you can then send them a queue for them to follow.
Or perhaps you should be required to Aim the arrows of you r archers for them actually to hit the enemy... make it Wii adapted so you can block arrows with your shield, swing your sword, etc.
Perhaps you should be expected to balance a chemical equation before you can develop
or you must describe the requirement for plant growth to achieve agriculture,
An essay on government should be sufficient for Constitution
And you should have to submit a completed income tax form before you can change to a bureaucratic government
You say that is stupid.. that is just as stupid as forcing the player to remember what his people should remember.
Thanks for the support of the other idea though. I'd probably make some 'Hard limits' though
Ie some units can pass out of the supply limit borders and pay higher costs, other units just could not pass (basically they could not be supported if they went that far) [oops noticed typ in the idea... farter away means More costs not less]