SGL Chance Increase

[Own]

in the civilopedia, it says that the chance of getting an sgl increases every time you're the first to research a tech. how much does the chance increase by?

 

[Pfeffersack]

That's a bit misleading.The chance is always the same - 3% for non-scientif civs, 55 for scientific civs.You have to chance for evry tech you research first.It isn't cumulative and the encounter "SGL" is independent; means, even after the 40th tech you research first in agame, your chance to get a SGl with the next is still 3% and 5%.You will often play games with plenty first-researched techs and get none.For example, the probability for a non-scientic civ to get no SGL for 40 first researched techs in row is (1-0,03)exp.40 = 0,295, nearly 30%! (for scientific civs, this drops to 13%) In other games with rather few such techs you might get a bunch.

To sum up, you are more likelier to get a SGL if you research 40 tech first than if you research only 4, but it isn't more liekly for the 40th tech than for the 4.Only the fact that you have your base chance of 5% or 3% mor often makes it more likely.