I recall reading some details around this on https://blog.merovius.de https://blog.merovius.de. Maybe it was this article: https://blog.merovius.de/posts/2018-0

I recall reading some details around this on https://blog.merovius.de https://blog.merovius.de. Maybe it was this article: https://blog.merovius.de/posts/2018-06-03-why-doesnt-go-have-variance-in https://blog.merovius.de/posts/2018-06-03-why-doesnt-go-have.... Compilation speed plays a big factor when deciding which features are added to Golang and I think they'd have a hard time maintaining the current compilation speed if they remove this limitation.