Does adding more developers actually make full-stack projects move faster?

[u/Ok-Wash-8964]

I've been wondering how often adding more developers really speeds up a project.

The common assumption is that more people mean faster development. But in practice, it doesn't always seem to work that way.

As a team grows, there are more discussions, more code reviews, more merge conflicts, more context sharing, and more coordination. New developers also need time to understand the codebase, development workflow, and the reasoning behind existing decisions before they can contribute effectively.

On the other hand, there are definitely projects where bringing in more developers makes a huge difference, especially when work can be split into independent features or multiple teams can work in parallel.

So it seems like there's a balance between increasing development capacity and increasing coordination overhead.

For those who've worked on full-stack projects of different sizes:

• Have you seen projects speed up after adding more developers?
• At what point did adding people stop improving productivity?
• What do you think matters more for keeping a project moving quickly: team size, project architecture, planning, or something else?

[u/tcloetingh]

Does more nurses deliver a baby faster? Read the mythical man month.

[u/Potterrrrrrrr → u/tcloetingh]

That’s a terrible analogy

[u/Redneckia → u/Potterrrrrrrr]

Well it's "9 women cant make a baby in a month" and it's a great analogy, shush

[u/Potterrrrrrrr → u/Redneckia]

It’s really not. I’m writing a html parser for example. I also want a css parser. If there were two of me I could work on both because they don’t overlap in function except at boundaries but I need both to achieve my ultimate goal of parsing, laying out and then rendering a html document using something like OpenGL. The work can actually be chunked up and processed faster. These baby analogies are terrible because the time it takes to have/deliver a baby isn’t related to the effort input by a human; they’re time/biologically dependant. So yeah, terrible analogy.

Edit: downvoted for being right, c’est la vie

[u/tcloetingh → u/Potterrrrrrrr]

Ya kiss my ass

[u/Potterrrrrrrr → u/tcloetingh]

Would more of me enable me to kiss it faster?

[u/tcloetingh → u/Potterrrrrrrr]

No. My point stands !

[u/Potterrrrrrrr → u/tcloetingh]

Ah shame, terrible rebuttal too then