Noel recommends def self.foo over class << self, implying that these are syntactic equivalents, but I beg to differ; the former does not update the third implic

Noel recommends def self.foo over class << self, implying that these are syntactic equivalents, but I beg to differ; the former does not update the third implicit context (aka the default definee) whilst the latter does, per yugui’s classic article on the matter https://blog.yugui.jp/entry/846 https://blog.yugui.jp/entry/846, and this makes more sense to me in common usage. So instead of treating them as syntactic equals when they’re not, I reserve the former as a special case, a clear sign that the following method body was intended to operate in the implicit definition context of its surroundings for some reason.