> I'm a huge fan of dynamic languages. I think they're so much more productive. This hasn't been my experience. I work in Python (and JS) by day, and I can't

> I'm a huge fan of dynamic languages. I think they're so much more productive. This hasn't been my experience. I work in Python (and JS) by day, and I can't wait until we upgrade to 3.6 so I can reasonably employ type annotations. Without them, people tend to write hacky code, such as functions which do completely different things based on the data type passed in (rather than fixing the abstraction) or build up huge, nested data structures with no formal definition (various parts of the code base just tack on whatever they like, and the documentation inevitably falls out of date). Even my prototyping is in Go, because I would rather have a compiler catch my errors than to spend tenfold the time trying to debug. Also, when I'm working in Python, I sorely miss the tooling that I have in Go and other static languages. I don't think Go is the end-all-be-all of programming languages, but I think any dynamic language would be more productive if it was at least optionally typed.