The previous discussion you remember is probably in Planning for Demos 7 & 8.
I repeat my criticism of your approach. Essentially I believe that the save files will be prohibitively large. Here's what I said before:
However, you can do the estimates of the save file size better than I. I've said my piece, and won't gripe any further! But I will say I told you so when the save files start approaching 100MB. (I'm not talking about for the current scenarios, but rather full-map games. There is no detailed calculation to back up my contentions. . .)I just think that So Much is going to change over even a few turns that you will end up saving virtually the entire game every time anyway. The unchanging parts are: The map outlines, and numbers of sites per map square will change infrequently. Just about everyting else will change over relatively small numbers of turns. Everything in the economy changes gradually, Same for much of the Social model. These are the largest memory-users in the game.