I love the work you did on the supply building efficency. I almost have it figured out, though I'm still unsure of your calculations on how you came up with the formula. Rest assured I won't ask you to explain math to me :).
I would love to have you add the future era on your page. I have been an avid follower for quite some time and have used your page to freat success.
I registered with wikia just to let you know this and I am looking forward to any additions you might add!