12/ To scientifically prove Conways Law is difficult/impossible, we would need to formally define a whole host of things (including, most importantly, what "communication structures" are), and then we would need to find appropriate measurements and run a bunch of experiments. But for this entire thread I will assume that Conways Law describes a real mechanism in tech organisations: Two groups of people that do not collaborate, but create software that needs to collaborate, will tend to create at least two modules (at minimum one each) and create some form of communication between them: ones output is the others input (possibly bidirectional), for example an API or similar.