Why Adding More People Doesn't Fix It
Your project is behind schedule. The obvious solution: add more engineers. So you do. And somehow, it gets worse. Meetings multiply. Decisions slow down. The team that was struggling with 5 people is now drowning with 10.
This isn't bad management. It's geometry.
Here's the key insight: coordination capacity doesn't scale with how many people you have (the "volume"). It scales with how many people can actually talk to the outside world (the "surface"). When you double the team size, you might only add a few more people who can interface with stakeholders, other teams, or customers—while dramatically increasing internal complexity.
It's like a cell. As cells grow larger, their surface area (where nutrients enter and waste exits) grows slower than their volume (where metabolism happens). Past a certain size, the inside starves. That's why cells divide instead of just getting bigger.
The instrument below shows this directly. The teal dots are "boundary agents"—they can coordinate with the outside world. The gray dots are interior—they can only talk to each other. Watch what happens to efficiency as you add more agents without expanding the boundary.
Try it: Increase the agent count and watch efficiency drop. Then try the "line" shape—where everyone is on the boundary.