This isn’t a point that Rorty just missed. He argues that Truth can’t serve as the goal of inquiry in practice since [we would not be able to aim at it,] or know if we’ve gotten closer to it, or know if we’ve achieved it if we did not already possess it.
huh???..The following appear to be your reasons for thinking science can’t have truth as one of its aims, all of which are absurd reasons.
(1) Science can’t aim at truth “because we would not be able to aim at it”–but that’s only restating what you just said.
(2) Science can’t aim at truth “because we would not know we got closer to it”–What is “IT”? THE Truth? Of course we probably won’t ever come to know the complete truth about everything–simply because we will never be God. But so what? No one should put this godlike demand on science anyway. Nevertheless, we are still making new discoveries about what is true. So why should this bar us from making even further discoveries about what is true? And why cannot this still be the aim of science?
(3) Science can’t aim at truth, “Because we wouldn’t know that something was true when we found it?”–this is a lame reason. If I didn’t know that something was true when I found it, then I wouldn’t know that I had found the truth. well duh! That’s just a tautology.
(4) Science can’t aim at truth “Because we already know the truth about everything as it is?”–this is clearly false. We don’t know everything there is to know about what is true and what is not.
While we can’t aim at truth, we can aim at assuages our doubts
.
That sounds like Karl Popper’s view of science, namely, that scientific hypotheses and theories are never confirmed but only “corroborated” by having passed every single attempt to disconfirm them. But I don’t know what corroborated means other than “confirmed.” Confirmation of a hypothesis is not the same thing as proving a hypothesis anyway, and it never has been. No scientist thinks any theory is ever “proven.”
But certainly we can still aim at discovering new things that are true. We already know many things that are true as a result of science’s efforts to aim at truth.
It is certainly true that the classical pragmatists conflated justification with truth. Rorty is willing to grant the distinction to the realists in a description of knowledge as justified true belief. The difference for Rorty and Plato is that for Rorty truth is always used as an adjective rather than as an essence.
Of course “true” is an adjective. “Truth” as a noun can’t be philosophically or scientifically defined. So what is so novel here about Rorty’s view? Here’s the simplest deflationary theory of “truth” that I can think of which most other philosphers have accepted for hundereds of years now:
“P” is true if and only if P.
Done
That’s all we need to know about “Truth” with a capital “T.” Any linguistic, philosophical, or scientific attempts to offer definitions or further explanations of it get convoluted and weird really fast. However, even though this has been the case for all secular attempts to arrive at some understanding of “Truth,” I will nevertheless make one religious statement of identity that holds even above Plato’s: Christ is Truth.
There are many comments I need to respond to from Dave and Syntax, but to help focus the issue at hand, I want to explain the motivation for the OP. As I said ealier, I expected the objectoins to my thesis in the OP to come from the atheist side, because what I set out to do here is give a pragmatic critique of the demands that atheists make for believers to justify their beliefs. While believers frequently assert faith as the foundation for religious belief, nonbelievers such as Sam Harris argue that believers are not rationally entitled to their religious beliefs unless they can provide evidence. As Harris said in his Atheist Manifesto, “The atheist is merely a person who believes that the…[people] who claim to never doubt the existence of God should be obliged to present evidence for his existence…” In this thread I set out to investigate the question, is there really such a duty?
Yes there is a duty, all beliefs demand evidence. But you, Rorty, and Harris seem to think that if there is going to be any such demand then it can
only be of the scientific or historical kind. We don’t demand empirical proof for theorems in mathematics, precisely because there is none. At most we know mathematical formula have successful application to the empirical world, but their truths certainly aren’t grounded in empirical evidence, but are completely independent of it. By the same token, all religious beliefs are under the burden of providing justification for their beliefs, but by no means are these demands for evidence solely restricted to those of scientific and historical kinds evidence. To think otherwise is just assuming that religious beliefs are on par with claims like “the tooth fairy and santa claus exist,” or those of astrological predictions and such. But most religious claims are not. Some are absurd, of course. But the Articles of faith are not.
Also, the project of science as finding out “how the objective world works independent of human goals and purposes” is itself a human goal and purpose.
Sure, but
what happens to be true is not defined by our pragmatic concerns, and is entirely independent of them. In other words, we don’t suddenly decide that “X is true” becuase it is useful to believe it, or because it makes us happy, or because it gives meaning to our existence. This would be “inventing the truth” which is completely irrational and entirely contrary to the notion of
objective truth independent of human concern.