I was playing again last night (surprise, surprise....) and I was looking at attachking the Babalonians which had discovered the Great Wall. I was getting close to discovering metallurgy (which makes the Great Wall obsolete)
Question 1: Should I wait to attack Babylon until after I research metallurgy (aside from the benifit of cannons). i.e. Once someone researches metallurgy does it make the Great Wall obsolete regardless of who owns it or is it only within your civilization.
Aside: This "game" is becoming quite the problem
Question 2: I have a work related cruise for the better part of November that is not going to require very much work. Is sleep truely a necessity?
I have always known about this series and never tried it out, boy was I missing out!
Question 1: Should I wait to attack Babylon until after I research metallurgy (aside from the benifit of cannons). i.e. Once someone researches metallurgy does it make the Great Wall obsolete regardless of who owns it or is it only within your civilization.
Aside: This "game" is becoming quite the problem

Question 2: I have a work related cruise for the better part of November that is not going to require very much work. Is sleep truely a necessity?
I have always known about this series and never tried it out, boy was I missing out!