I don’t really know Ruby, but I imagine that if a subclass overrides puts, then code in the base class calling puts will invoke that override instead of invokin

I don’t really know Ruby, but I imagine that if a subclass overrides puts, then code in the base class calling puts will invoke that override instead of invoking the pseudo-global Kernel version. In other languages, the method definition in the subclass would be irrelevant, calling the global function wouldn’t cause polymorphic method dispatch on the current object.