Go's nominal interface feature is definitely interesting, but that section doesn't talk about how amazing it was to implement interfaces implicitly: > That not

Go's nominal interface feature is definitely interesting, but that section doesn't talk about how amazing it was to implement interfaces implicitly: > That notion quickly grew into the idea that value types had behaviors, defined as methods, and that sets of methods could provide interfaces that functions could operate on. Go's interfaces arose pretty much right away. If you replace Go with Java, this would've accurately described Java ~30 years ago.