…Side question for extra credit: why is there such limited discussion of the two schools in the Objectivist literature? The Lexicon only has one reference (to FNI). I thought there was a section in OPAR dealing with it, but I don’t see it. (The final sections of some of the chapters there are polemical: “Idealism and Materialism as the Rejection of Basic Axioms” or “Mysticism and Skepticism as Denials of Reason.” Why not a section on rationalism and empiricism?)
At the risk of getting ahead of myself, I think your question could be generalized and re-phrased as “Why didn’t Ayn spend more time debunking her opposition?” As a general answer to both your question and my new one, I offer it in two parts: 1) For a person who wrote 4 novels, a play, several short stories _and_ created an entirely new and superior philosophy to boot, I’d say that she had to keep her eyes on her priorities and, in turn, this means 2) She was more concerned with asserting the positive by elaborating her philosophy rather than with rejecting the negative by focusing heavily on differentiating her philosophy in toto from her opponents’ work.
Now on to OPAR: If you hold on a moment(!) and go back, I think that you’ll find that you glossed over the book that last time! For example, just in Ch. 4: Objectivity _alone_ there are two relevant sections: one on context and another on hierarchy. Context and hierarchy are ultimately anathema to both Rationalists and Empiricists, but in partcular, the Rationalists would reject hierarchy for fear that their ordained premises i.e. their baseless presumptions could be replaced by something better tied to (and suited for) reality, and the Empiricists would reject context for fear of premises that don’t directly follow from their (narrow) observations.
(The older-guard Objectivists are watching me closely here at this point.
)
Of course, both the Rationalists and the Empiricists do not abide by the rules of valid induction. As Dr. Peikoff might put it, neither group has “flooded the senses” enough and followed through accordingly to draw the right conclusions.
(You’re just itching for me to give an example to concretize these points, right? Me too!)
I guess one of the wiser things that I can (and should) state is that hierarchy and context are not divorced from each other!!! Think of the events leading up to the train crash in _Atlas Shrugged_. Doesn’t it make a difference _what kind_ of people are on the train? Well, there’s some context! Doesn’t it make a difference that Dagny’s company is suffering from “brain drain” _before_ the crash? Well, there’s some hierarchy! These are the SAME EVENTS leading up to the inevitable result. You can’t partition out and drop an aspect of the story either “out of hierarchy” or “out of context” and expect the same resulting conclusion to that scenario!!! (In case, anyone is wondering, you can analyse her essays and find the same type of considerations for epistemic integrity.)
Returning to your original question, here’s another version of my question for you: Why would she (separately) focus on other Modern philosophies at the expense of developing her own work when she can “feed one bird” while killing off the others at the same time. “Objectivism provides for its own defense.” You _can_ use Objectivism to reject Modernism (which is part of what ARI does.) Again, I refer to the mortality of human life. What more would someone expect of Ayn given what she _did_ achieve? …same for Peikoff, Binswanger, Hull, et al.
I don’t fear what Ayn’s enemies do as much as what Ayn’s supporters fail to do, (and I want to stress that ARI _has_ succeeded… and in so doing has achieved what others have _not_)! “The road to Hell is paved…”