Say the cost in time/money/resources of coordinating between any two individuals is on average x dollars. Let's call this figure pair coordination cost. The pair coordination cost between 3 individuals, ignoring overhead, is 3x dollars, as there are three possible pairs that need to coordinate, i.e., there are three connections in a network with three nodes. The pair coordination cost between 4 individuals, ignoring…
Now multiply that by ~2,000. That's, roughly, the sort of resources Google has had. Kind of makes you wonder. Do we dramatically overestimate our abilities, or does the efficiency of companies like Google truly diminish as much as this little thought experiment would seem to suggest?