Quote Originally Posted by LansXero View Post
That just goes contrary to how development works in so many ways its not even funny. In order to do any of that, its not a case of a 'super human brain' coming up with anything; you need to continue research into the fundamentals (metallurgy, ballistics, computing, etc), set up a production line, set up a supply line for said production line, then set up a logistics chain across a distance so enormous you need to step into hell just to get anywhere. Im not entirely sure how you expect any of that to happen when every chapter is constantly undermanned due to endless fighting and attrition, when even chapter survival isnt a given and when everything is handled by the AdMech. Once again, its like if you are talking about this setting you imagined, not whats actually writen anywhere.
It gets worse once you realize that Space Marine's arent necessarily any smarter than anyone else, they arent really designed to be. Space Marines are optimized for one thing, fighting humans and (to a lesser extent) xenos. Thats it. You want new tech, talk to the tech priests, you know, the guys who replace half their brain with computers?