[sota_pop]

The way I describe language types to non-coders inquiring about language selection for a given project is simply “scale matters”… dynamic types provide flexibility at small scale, but can very easily result in chaos at a large scale. Conversely, the structure of static types can feel onerous and restrictive at small scale, but provide robustness and structure at large scale.

[xutopia]

If you mean codebase complexity and team size... then yes... types is more helpful with that. But in a small team with a small codebase you don't need types to do really well. I find types helped a lot when multiple teams were responsible for different domain spaces inside different components of a Rails app. I never saw the same advantage in codebases that are much smaller with fewer people.

[sethammons]

If you can keep everything in your head, types can feel superfluous. Large projects make that nigh impossible.

[chipsrafferty]

In my experience it's exactly the opposite.