T
Touchstone
Guest
No worries.Hi Touchstone,
Sorry for delayed reply (still thinking about our other discussion by the way).
I wondered if you were working from EAAN here, but decided no. I guess I was mistaken.I think you have misunderstood my point (or rather, Plantinga’s point which I am paraphrasing).
This is “philosophy-speak” from Plantinga, but it’s kind of a laugher when it actually gets applied to humans (or any other animal). When you take a look at the physiology and wiring of an animal, you can see the necessity of “truth” (truth == correspondence to reality) as a matter of biology. The rods and cones in your eyes, for example, are sophisticated light receptors, and fire away based on light patterns that enter the eyes. Cognitively, the perceptions modulate along with the (name removed by moderator)uts – the brain is a machine. So when Plantinga says survival-promoting is not necessarily linked to “true”, he is either committed to a equivocation on “true”, where “true” does not mean “corresponds to reality” but some kind of Calvinist theological indulgence of the term, or else he is playing the solipsist card, that reality isn’t real. In either case, it’s a waste of everybody’s time. Truth is survival. There’s nothing more ‘real’ or ‘corresponding to reality’ than to survive in it.If evolutionary processes are what molds our cognitive faculties i.e. our psychology, then the beliefs produced by our cogntive faculties are not setup to necessarily be true, rather they are setup to be survival promoting.
Therefore the point is that if evolutionary processes have indeed fashioned our minds to such an extent that they govern our belief tendencies, then such beliefs should possibly be doubted.There is no essential connection between survival and reliable truth promoting cognitive faculties, this is especially the case for higher order beliefs, such as those regarding logic, worldviews and any beliefs regarding evolutionary psychology themselves.
Yes, of course. Everything should be doubted. That’s essential to building models of reality that work. But when you doubt the efficacy of the evolutionarily-honed physiology of a human or some other animal, it quickly runs into absurdities as doubt. Why does the spider trust the shaking it detects in its web? Why should the spider think that means a fly has become ensnared? What basis does it have to trust that? Well, it’s a natural process, and self-fixing by necessity; the spider that doesn’t trust those perceptions doesn’t survive and doesn’t reproduce. It’s only those organisms that have developed physiology that are effective in sensing and processing real-world (name removed by moderator)ut that have made it to this point. All that’s left now, after billions of years of ‘truth-filtering’ are highly refined truth machines.
(See above and the comments about higher faculties. Man is so successful, he can indulge in all sorts of nonsensical beliefs, beliefs in areas that are not tightly connected to survival.)
Sure, but that’s nothing more than pure solipsism – reality isn’t real. If reality is real, that whole point completely falls apart.If Plantinga or anyone else wants to pursue solipsistic arguments, they are welcome, but it’s a big yawn from me, a complete waste of time. It is interesting to note, though, that once again the ‘reality of reality’ becomes the nemesis of theology and theologians/theistic philosophers.These beliefs of course also contain beliefs about evolutionary psychology for the evolutionary psychologist. Hence the possible self-refutation.
Well, it’s tautologous. The “faulty thermometer” here CANNOT be faulty on a transcendental basis. It’s the reference standard for “temperature”. In an all-too-common bit of irony for Plantinga, he suspects reality – the world around us – of being an inadequate reference point for ‘truth’, which of course begs the question: what then, is the basis for truth? And then we get a good solid shot of the unreal as the basis for truth as a replacement for the real world as our reference.You can’t show that such beliefs are rational (and therefore not an “illusion”) by using the same kind of beliefs, that would be like using a possibly faulty thermometer to check whether another possibly faulty thermometer is functioning correctly.
The real world is our reference standard. There’s nothing more real, and nothing at all by which we may say it is faulty – if you disagree, then maybe you can tell me on what basis you might judge reality to faulty, the real world to be “unreal”. It’s the gold standard, and the ground for rational concepts of “true”.
-TS