Kant’s cats

You’re wondering – I know you are – about the unexplored connection between Kant and Cats. And I need to begin by disappointing you: this is not one of his. This is nameless cat from Vallouise whose only sin was to stumble into my viewfinder. I should continue by saying that I’m going to parrot Popper, because I think Popper has it right; and has explained something I’ve wondered about for a bit, viz why anyone takes Kant seriously3.

Start, if you don’t mind, with the usually moderately reliable Wikipedia, and ponder their Kant’s antinomies page. It is, I hope you can agree, impossible to understand. WTF is Kant actually trying to prove with his “proofs” that contradict each other? In fact, there’s a hint there, which is readable if you already know the answer: He used them to describe the equally rational-but-contradictory results of applying the universe of pure thought to the categories or criteria, i.e. applying reason proper to the universe of sensible perception or experience (phenomena). Empirical reason cannot here play the role of establishing rational truths because it goes beyond possible experience and is applied to the sphere of that which transcends it. Well, it is a hint, but it is garbled and incomplete. Another somewhat garbled version I found on the wub is from Michael Allen Gillespie: On the face of it, these two assumptions seem to contradict one another. Kant, however, attempts to show that this contradiction only arises when reason transgresses its own limits and seeks to grasp the infinite. Reason thereby becomes dialectical and is lost in a realm of illusion where it is misguided by imagination and rhetoric. The solution to this problem, in Kant’s view, is a critique of reason that makes its limits clear. This is the goal of The Critique of Pure Reason. On the basis of this critique, Kant believes it will be possible to distinguish the legitimate philosophical use of reason from its dialectical or rhetorical use, and thus to guarantee the rational foundations of science while leaving room for morality and religion. Which is roughly right; though it is odd that MAG, presumably a scholar, doesn’t credit Popper with having already said it.

Now, let’s try Popper’s version1:


This actually makes sense; if it wasn’t what Kant actually intended to say, I’m sure it’s what he would have intended, had he thought of it. It chimes very nicely with Hobbes’s hatred of the “Schoolmen” and Popper’s own views; and, I think, with mine. And with a view of science as theory grounded in experiment. Just to be clear, since I’ve included a non-searchable image, the argument here is that pushing abstract reasonning too hard without any attempt to check it via experiment – or into domains where it cannot be checked – will inevitably lead to a large pile of words with no real meaning.

And this, to return to my title, is how the Antinomies are like Schrodinger’s Cat: misunderstood by most people. Just as Kant did not try to argue that contradictions make sense – quite the reverse – so Schrodinger did not try to argue that a cat can end up with a waveform representing Dead and Alive combined.

[Late update: I think I should add that I am suspicious that Popper is merely fathering his own ideas on Kant. If true, that wouldn’t make the ideas wrong, it would merely weaken Kant’s reputation. Furthering this suspicion is Kant’s “Matter is infinity divisible” statement / “proof”.]



1. The Open Society and its enemies, volume 2, Hegel and Marx2, chapter 12 section II.

2. In which Our Hero defends TOS by attacking some of its enemies, namely Hegel and Marxism. Note that while he spares no sympathy on Hegel, his works, his influence and his followers, he has considerable sympathy for Marx if not for Marxism.

3. I know you’re not interested, but I am: having stumbled across Kant’s Antinomies many years ago – perhaps 20 – I wondered why anyone took this stuff seriously, and just wrote him off as yet another incomprehensible and pointless German Philosophe. Popper, however, treats him seriously and contrasts him favourably with Hegel; indeed, along with Schopenhauer he is brought in to bolster Popper’s fight against Hegel.


  1. #1 Nick Barnes

    Antinomies, not antimonies (twice).

    [Thanks; fixed -W]

  2. #2 Harry Twinotter

    Meh. The apparent contradiction itself might be an illusion. Like, say, “spooky action at a distance”.

  3. #3 angech

    I did try to read it once but got further into Ulysses than I did with Kant.
    Is there not a way to put things more simply, for both?
    In an open ended universe, which we happen to inhabit, with a rapidly expanding and rarefying knowledge base perhaps there are no longterm answers.
    God I hope I am not agreeing with Harry but that is what the logic apparently dictates.

  4. #4 Arthur Smith

    Ah, philosophy. I have tried to read Kant several times and not gotten far. Popper’s summary does indeed agree with what little I undersroood of it – the Critique was intended exactly for that purpose, to show the limits of theory when extended beyond experience. Something many physicists forget unfortunately. I was wondering if reading Kant in the original German might make more sense but Popper’s comments make that sound unlikely.

    [It seems likely that Kant is best read via another, such as Popper. That means you do have to trust the interpreter to some extent -W]

  5. #5 Willard
    Tossers, Tossers Everywhere

    ­­> It seems likely that Kant is best read via another

    No, it’s not. It seldom is. That just means you’re not ready.

    It’s not that hard, you know. Wait till you get to Hegel. It just takes time.

    A bit of German helps. Tutors too. No good tutor would trust the Pop on this. As far as misrepresenting giants, he’s even worse than Russell. I rather like Claude Piché, e.g.:


    There are two versions of Kant’s Critique, BTW. Read them side by side.