People dunked on this tweet, saying, in essence, “This isn't 100% correct - you shouldn't pay attention.” But that misses the point. The value of any model is that it's simpler than reality so that you can gain insight. Here are the insights I have gained from this model. Quoted RichRogersIoT's tweet:
The challenge with adding more engineers to a project. Just moving from 3 developers to 4 doubles the number of lines of communication.