[reeses]

I would assert, rather, that we have 60 years of compiler and runtime experience, both academic and industrial.

Consequently, I would propose that there is no excuse for a public release of a commercial programming environment to be so slow unless it introduces significant novelty sufficient to render the preceding work inapplicable.

[mistermumble]

I agree. Especially if the language is named something that implies high performance.

When Golang first appeared it was quite fast. Swift is not, apparently.

[xooyoozoo]

Go's compilation was fast, which made developement much more pleasant. Performance of the actual compiled code was a different matter (hard to get both fast binaries and fast compilations).

However, I understand that 1.1 and 1.2 has much improved code performance.

[axman6]

Golang also doesn't do anything particularly interesting as a language, and didn't have to maintain interoperability with a system like Objective-C.