But you think rationality happened, to all intents, instantly.
To be fair, that’s the thesis of evolution, right? It’s a gradual change, but the idea is that, at some point, we can point and say “this species” rather than “that species.” Can we do that with any practical certainty? Of course not. Yet, that’s the idea – there’s a point on the continuum where we can say “this thing” and not “that thing.”
Rationality is merely one of these things we’d want to be able to talk about; and, if we define “human” – as opposed to “hominin” – along those lines, then we want to be able to do
precisely this kind of thing!
And I don’t know anything in nature that has happened instantly. It’s all an incredibly slow and cumulative process.
Agreed. It’s a process. And yet, if we’re going to provide definitions of various “species”, then we really
are drawing a bright line between ‘predecessor’ and ‘successor’ species!
So I have no evidence that rationality wasn’t there one day and suddenly appeared the next.
Indeed. Yet, the presence of evidence in your hands is not the determining factor of whether it’s true… right? It might be the standard by which you, personally, decide to assent… but that’s a different story altogether!
But unfortunately I think that your definition of rationalty is inextricably linked to the soul.
Let me help you out, here: it
absolutely is the position that I’m staking out! And, yes – this means that there’s no objective evidence that I can present to prove it or that you can present to disprove it. Now, that might mean to some that it’s an unsupportable thesis… but I think that’s incorrect. It’s an
empirically unprovable thesis, but that’s not the same thing as an
unsupportable thesis. Those who equivocate the two make an error of category.
Whereas my definition is pretty much the dictionary definition of having an ability to use reason or logic.
So… how might you hope to be able to point to a person, as the first in a species, and say “HIM!” or even better yet “HIM! And not this one before him!”
