In the swampman argument, Davidson imagines a character named Swampman, who is spontaneously formed from a swamp due to a freak lightning strike. This strike coincidentally arranges a swarm of molecules in such a way that they perfectly replicate the body and brain of Davidson himself.
Davidson concludes that because the mental representations of the swampman aren't causally connected to what they represent (either; directly; or indirectly, say, via a teacher), the swampman cannot mean anything when he speaks.
I understand that direct referentialist believe that that causal connection is important for words to refer. However, I would have thought that the Swampman experiment would have counted as evidence that the causal connection is an absurd requirement for reference! It seems even more of a strech to say, as Davidson does, that this being can't mean anything.
(aside: Davidson doesn't define meaning, but to claim that the Swampman doesn't mean anything is a more ambitious claim than to say that the noises Swampman makes don't refer, since it's a matter of debate that reference is necessary for meaning.)
If I examine myself as I am right now, it would be impossible, via Descartes' cogito, for me to deny that I'm having thoughts (of which Davidson also deprives the Swampman). Moreover, for all intents and purposes, the words that I'm writing now have meaning and refer to things. If I were to soon discover that I was randomly constituted a few minutes before the time of my writing of this question, it would make no difference. It seems that the requirement that my mental representations and so on be causally related to what they represent would be inconsequential as far as I, or anyone I encounter, would be concerned. In light of that, it seems that any claim that reference requires the speaker to stand in the right causal relation to the referenced thing is an arbitrary stipulation.
To use an extreme example to to make the point: in my country, holocaust denial is illegal. It seems absurd to say that Swampman could become a prolific holocaust denier and be immune to punishment.
To quote Davidson:
[Swampman] can't mean what I do by the word 'house', for example, since the sound 'house' it makes was not learned in a context that would give it the right meaning—or any meaning at all. Indeed, I don't see how my replica can be said to mean anything by the sounds it makes, nor to have any thoughts.
From that, it appears that, according to Davidson, we couldn't punish Swampman for prolifically denying the Holocaust. By the same line of reasoning, we couldn't punish Swampman for encouraging a person to commit suicide (which is also a crime in my country) and so on. On my reading of Davidson, we would be as justified in punishing this holocaust denier as we would be in punishing a parrot for making noises that sound like a sentence that denies the holocaust.
The absurdy of that conclusion would seem to demand that we conclude that Swampman can refer to things, mean things, and think about things; and therefore, that standing in the right causal relationship to a referenced thing cannot be a requirement for words and concepts to refer, signify, and so on.
- To me, Swampman is evidence that, contra Davidson, a causal relationship between the refering person and the world isn't necessary for reference (and especially not for meaning). Without presupposing Davidson's claim that causal relations are necessary for reference/meaning, how does Swampman help him make that claim?
- Are there philosophers who use Swampman to the make the opposite claim that Davidson does?