In RI, with the crazy K-mod AI's and impossibility to bribe them onto someone or off your back makes the game uncontrollable and unpredictable. It kills the mod. Especially for games EMP+.
Too much Realism over game balance choices may kill a game bluntly.
I'm not Haroon, but despite I know which type of tech diffusion you are referring to, the one Haroon mentioned is of a different beast: it is a feature specific of Realism Invictus mod where an AI with which one has Open Border possesses a tech will make the same tech you're currently research discounted.
I see there are a lot of added things compared to vanilla... I love the idea of this mod but part of me thinks it looks like a kitchen sink mod like Caveman 2 Cosmos. Is it similarly large like that mod or is it more focused?
This is a much more focused mod.
Caveman2Cosmos was/is built by a number of people who are interested in different eras and different game mechanisms. BTW We have not yet added the kitchen let alone the kitchen sink