Quick Update, Third session, up to turn 129, 350AD
So far, playing not aggressively, Immortal doesn't seem harder than Emperor. I mean, after 2.5 games on Immortal, I have the impression that war is definitively way harder, while a peaceful game is not so different.
Again... I'm saying this based on a very little experience and... so far.
No cheats, no reloads, ScreenShots in the spoiler, Save Game attached.
Any comment is welcome (ehm... I just can't promise I will follow your advices
). 
I'll check-out the other spoiler as soon as I'm done with my game.
Greetings.
yatta.
Spoiler :
Discovered Civil Service and Switched to Bureaucracy in the previous turns, then Traded it:

and targeted Paper, which is being researched at the rate of 204
/turn, about 100
/turn more than 10 turns earlier.
The Empire is doing pretty well: the Workers are finishing up with Farming the MidLands Valley, while most of the cities are already equipped with Library and Granary, the few others will very soon. The coastal cities are planned to build the lasts Fishing Boats and Lighthouses. Memphis and Elephantine are going to be the Barracks cities and care of putting up an army in the following years. Almost all cities are both growing and running scientists.

After some other Great Scientist built the Academy in the capital, Galileo Galilei has born few turns ago, and settled there, hoping he's the first of a long series of high-brained guys residents of Thebes: the city alone already generates 127.75
/turn.

I'm pretty confident there is a decent chance to be first to Liberalism without bulbing anything.

and targeted Paper, which is being researched at the rate of 204


The Empire is doing pretty well: the Workers are finishing up with Farming the MidLands Valley, while most of the cities are already equipped with Library and Granary, the few others will very soon. The coastal cities are planned to build the lasts Fishing Boats and Lighthouses. Memphis and Elephantine are going to be the Barracks cities and care of putting up an army in the following years. Almost all cities are both growing and running scientists.

After some other Great Scientist built the Academy in the capital, Galileo Galilei has born few turns ago, and settled there, hoping he's the first of a long series of high-brained guys residents of Thebes: the city alone already generates 127.75


I'm pretty confident there is a decent chance to be first to Liberalism without bulbing anything.

So far, playing not aggressively, Immortal doesn't seem harder than Emperor. I mean, after 2.5 games on Immortal, I have the impression that war is definitively way harder, while a peaceful game is not so different.
Again... I'm saying this based on a very little experience and... so far.
No cheats, no reloads, ScreenShots in the spoiler, Save Game attached.
Any comment is welcome (ehm... I just can't promise I will follow your advices


I'll check-out the other spoiler as soon as I'm done with my game.
Greetings.
yatta.