[orvado]

I believe all of these are good points. The keywords are simple and concise and I believe the language constructs such as interface{} and sub-typing were designed to ensure compilation and running are insanely fast. Google is famous for optimizing their server applications and Go appears to be their "go-to" language of choice for all future web application development.

[codygman]

Interface{} (not interfaces as a whole) and subtyping would make compiling slower. I think sum types and pattern matching would compile faster and be more sensible.