Large software projects are almost as complex as cities and yet we have almost no one working on them. 4 developers can be enough to build a product used by millions. That’s kind of incredible IMO. 4 builders/architects/engineers don’t go nearly as far.
4 architects are also enough to design a house that can be built millions of times. If you include the builders into the city projects, it would be fair to include the tens of thousands of people working in data centers and network exchanges as well.
Also like a sibling comment states, 4 developers is not even close to a "large" software project.
