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I'm just wondering why the event where "half your human colonists go insane and start attacking one another" affects the MAIs. I'm not against the idea of them being able to go insane, say "enemy faction x has hacked your mobile AI protocols and taken over MAI x, or driven a number of them insane, etc" it just irks me that they're affected by an event that explicitly says HUMAN colonists...

I'm just wondering if there is a pure research tech-tree (as in what research unlocks the next level of research, or more importantly the reverse as in what research is required to get to unlock certain projects).
I know there is the image of the full tech-tree in the description but I'm having a hard time with it trying to find my desired projects such as upgrades (for the life of me I can't find the second upgrade for the static discharger. The description in-game says it becomes available after researching machining, which I have, but it wont pop up. I'm just curious if I'm missing something else).
If anyone could point me in the right direction it would be greatly appreciated!