O hear the phrase tossed around in arguments, but what is the theory?

Is there actually a well-defined theory with a specific canon or is it a vague/disputed term?

I'll probably regret asking this lol

    • VILenin [he/him]M
      ·
      10 months ago

      But it is absolutely not being taught in secondary school, let alone in kindergarten.

      Better get started then.