Wednesday, 4 March 2015

A Fragment on Jean-Paul Sartre's Positions on Free Will



It's strange how a philosopher who was - and still is - popular in leftwing circles (as well as among “radicals”) should have enunciated a position on free will that's very similar to that which is advanced by conservatives and religious people (both in history and still today). That is Jean-Paul Sartre's belief (at least in his existentialist phase) that we have total (or complete) freedom of will.

That position can be summed up by Sartre's own phrase: “There are no excuses.”

However, it can be said that the act of “rejecting our own freedom” is itself an act of free will. After all, a negative choice is still a choice. Even when you choose to submit to a dictator, that may still be an act of free choice (if not freedom).

All this may be explained by Eric Fromm's phrase (as well as his book title): “The fear of freedom.” And that's basically a version of Sartre's own “bad faith”.

Are we as free as Sartre claimed? 

Well, Sartre himself rejected his earlier “existentialist position” when he embraced Marxism in the 1960s. He once said that his earlier views were a “disgrace”. He did try to fuse existentialism with what he called “humanism” and Marxism; though Marxism seems to have come out on top.

In any case, Sartre came to believe that “economic reality” (or the “class nature of society”) was not only a major restriction of freedom: it also effectively negated free will in that many people have what Marxists calls “false consciousness”. Therefore they couldn't make "genuine choices".

The fact is that all sorts of things determine our “wills”, minds or selves, not just economic realities: genes, upbringings, culture, etc. So is there any free will (or freedom of the will) left after all that?


Tuesday, 3 March 2015

What is the Meaning of “What is the meaning of Life?”?



If the question “What is the purpose of life?” is fundamental and important, surely it begs two questions.

i) Why assume that there's a purpose of life (or a purpose to life) at all?

ii) Why should there only be one purpose (one meaning) to life?

Usually, when people ask this question it's because they think they believe that they already know the answer. Such people are really asking the following question:

“Do you want to know what the purpose [meaning] of life is?”

And the answer will usually be a religious one; though sometimes it may be “spiritual” or have something to do with what the questioner himself thinks the purpose/meaning of life is.

People may have their own views as to what the purposes of their own lives may be for themselves. Though what they believe doesn't depend on their also believing that there's a single purpose to/of life which they must somehow discover. (Or that they need to be told what it is by someone else.)

That still wouldn't be the purpose/meaning of life. It would be a purpose of life for a single individual. What one person sees as his purpose to/in life isn't the purpose of life. It's the main purpose of his life. Nothing more.

Basically, when most people ask “What is the purpose/meaning of life?” they believe that this purpose/meaning exists separately from human minds.

Of course such a belief can become more metaphysical or complex than the way I've expressed it.

For example, physically it can be said: 

There must be a primary thing from which everything else owes its existence. 

However, where does purpose or meaning fit into that belief? We could all owe our physical existence to the First Cause or to the Big Bang. However, there's no built-in purpose or meaning here unless it's argued for; rather than simply assumed. (Most biological things owe their existence to air and water – are they “primary things”? Is the purpose/meaning of life air and water?)




Monday, 2 March 2015

Three Quick Thoughts on Searle's Biological Theory of Mind


 
Why is the brain-mind (intentionally) connected to its surroundings?
 
That question seems very fundamental.
 
However, I have a feeling that what are called “biological naturalists” (or at least some of them) may see it as a “pseudo question” in that biology itself provides the answer. In other words, brains are (intentionally) connected to the environment because that was the next evolutionary step up from simply reacting – physically - to stimuli in the environment. (That can't be “intentional” - or can it?)
 
So here we're back to the why of intentionality and therefore the why of consciousness.
 
Causal Powers
 
How do John Searle's “causal powers" fit into all this?
 
Searle's talk about causal powers refers to the fact that a certain level of complexity is what's required to bring about those causal powers which are necessary for intentionality, mind and consciousness.
 
Searle never never says that biological brains are the only things capable - in principle - of bringing about consciousness and intentionality (therefore semantics, in Searle-speak). He says that biological brains are the only things known which are complex enough to do so. It really is all about the biological and physical complexity of brains and therefore their causal powers.
 
Dualism?
 
Searle actually accuses those who accuse him of being a “dualist” of being, well, dualists (or at least some of them, depending on their overall philosophy of mind).
 
His basic position on this is that if computationalists or functionalists, for example, dispute the physical biology of brains and exclusively focus on syntax, computations and functions (the form/role rather than the physical embodiment), then that will surely lead to a kind of dualism. What I think he means by that is that there's a radical disjunction created between the actual physical reality of the brains and how these philosophers explain and account for intentionality, mind and consciousness.
 
Searle doesn't believe that only brains can give rise to minds. Searle's position is that only brains do give rise to minds. He's emphasising an empirical fact; though he's not denying the logical and metaphysical possibility that other things can bring forth minds.
 

Thursday, 26 February 2015

Thoughts on the Privacy of Pain


 

The notion of particular pain x belonging to a single person, and to no one else, has been said to lead to the position of the necessary irreducibility of pain. (This position has been applied to all other phenomenal states too.) It’s also said that a particular pain is “not dependent for its existence on anyone else”.

So where do we go from there?

If we communicate our pain to others, then we’ll use a public language to do so. (Wittgenstein, of course, stressed the point that all languages must be public.) And even that private experience will be coloured by a public language — at least to some extent. So it can be accepted that there is a sensory or experiential aspect — or even basis — to the pain. However, that can’t be communicated in its (as it were) purity to another person or even to oneself! And it certainly isn’t what’s often called an “objective fact”.

So what is it?

Perhaps the sensory experience is an ineffable x (whether Locke’s “something, I know not what” or Wittgenstein’s own “beetle in a box”) which simply grounds public-talk and even self-talk about it.

Another argument for the particularity — and therefore (perhaps) non-scientific nature — of pain is summed up in this sentence:

“No one else could have that particular pain.”

Is that any more strange than the fact that this brick can’t be like that brick over there? In addition, the precise colour (or trope) of that bee over there is unique. And even public utterances about any given pain x are singular in the sense that each one will be unique in some way. So are pains are anymore particular than these other things?

It’s also argued that no one else can feel my particular pain in the way I feel it. Ditto. One brick may be very similar to another brick. Still, it’s not the same brick.

Pain as an Objective Fact

Some philosophers have argued that a person’s pain is an “objective fact”: as as objective as anything else.

Sure; a pain is real and part of reality; though is it also an objective fact or an objective… anything?

There is indeed “something it is like” to be stung by a bee. However, calling that something an “objective fact” doesn’t seem to be correct.

Of course none of the above is a complete denial of the private aspects of a particular pain. Yet since we take a very circuitous route to the physical reality of, say, DNA, atoms or electrons, perhaps we can do the same for pains. (It’s true that this isn’t an exact like-for-like comparison.) Nonetheless, being “externally identifiable” may still not be a necessary criterion for something’s being physical.

Just as we can’t perceive particles, so we can’t feel (or perceive) another person’s pain — except through that person’s verbal and bodily behaviour. We believe in the existence of, say, quarks because of a lot of theory, models and, yes, observable phenomena. Then again, the clues we have for another person’s pain don’t necessarily mean that the pain is physical. The clues (behaviour) are physical; though their causes may be non-physical. (Human behaviour being equivalent to the “traces” of particles in, say, a cloud chamber.)

Consequently, much of behaviourism was about ways to make pain — and the mental generally — externally identifiable and thus scientifically kosher. Yet it can still be said that pain — and other private mental phenomena - underpin (whatever that may mean) behaviour and language use; as well as mental functions as they’re expressed in (to use Quine’s term) “overt behaviour”.

So, when it came to behaviourism at least, all this meant that various philosophical problems still remained when it came to the privacy of pain and indeed all other mental states.


[I can be found on Twitter here.]




Tuesday, 24 February 2015

P is Determinately True or False




The position of what’s sometimes called semantic realism is that every (grammatically-acceptable) statement (or proposition) is bivalent (i.e., it’s determinately true or false); as well as being evidence-transcendent (i.e., it’s true or false independently of our means of establishing its truth-value).

Thus if we take any given p, we can state this:

Proposition is determinately true (or false) regardless of any proof, evidence, experimental data, etc. we may (or may not) have for it.

This immediately elicits two questions:

1) Can a statement (or proposition) be determinately true (or false) regardless of whether we know it to be true (or false)?

2) Can a statement be true (or false) regardless of how we can show it to be true (or false)?

Despite those two questions, even if any given proposition p is determinately true (or false) regardless… so what? That supposedly determinate truth-value doesn’t seem to have any epistemic or metaphysical point. What I mean by that is if we can’t establish a procedure for determining p’s truth-value, then what purpose does the locution “Proposition p is determinately true or false” serve? That realist truth is effectively a “an idle wheel in the mechanism” that doesn’t have a function (to use a phrase from Wittgenstein).

So now let’s put some flesh on this so-far rather abstract problem.

Take the following passage (which is known as “Russell’s teapot”) from the English philosopher Bertrand Russell :

“If I were to suggest that between the Earth and Mars there is a china teapot revolving about the sun in an elliptical orbit, nobody would be able to disprove my assertion provided I were careful to add that the teapot is too small to be revealed even by our most powerful telescopes. But if I were to go on to say that, since my assertion cannot be disproved, it is intolerable presumption on the part of human reason to doubt it, I should rightly be thought to be talking nonsense.”

Admittedly, it doesn’t really help matters that Russell gave us a silly (or simply humorous) example of a flying teapot between Earth and Mars. (Any other example/statement can do the same job just as well.) In any case, this is the central proposition in the quote above:

Between Earth and Mars there is a china teapot which is revolving about the sun in an elliptical orbit.

Now is that statement determinately true (or false) at this moment in time?

My point here — perhaps unlike Russell’s own central point — isn’t really about the epistemic nature of any possible (or impossible) proof (or demonstration) of the truth or falsehood of that statement. After all, the semantic realist is claiming that proposition p is determinately true (or false) regardless of proof or lesser kinds of demonstration. In other words, his point isn’t about our epistemic means (or lack thereof) of demonstrating a proposition’s truth (or falsehood). And the sceptic’s position isn’t relevant here either in that — to the realist at least — even if a demonstration occurred in the future, proposition p would still be determinately true (or false) at this present moment in time.

Now at present there’s no way of determining the truth (or falsehood) of the statement “There is a teapot between Earth and Mars which is revolving about the sun in an elliptical orbit”. Still, according to the realist, the statement is either true or false — determinately and at this moment in time. And any other given p is also determinately true (or false) at this moment in time.

But what if it does indeed matter how we determine any given statement’s truth (or falsehood)?

semantic anti-realist can settle for saying that a proposition (or statement) is truth-apt at this moment in time. However, a proposition can (or could) have its precise truth-value determined in the future and then it will “become” — simply — true. The realist, on the other hand, will counter that by arguing that proposition p is both truth-apt and true at this moment in time. (Later, the mathematician, logician, philosopher, scientist, etc. may come to determine its truth or falsity.)

To take just one often-cited example. What about the famous case of Fermat’s Last Theorem?

This is what the semantic realist will state:

Surely the proof of Fermat’s Last Theorem didn’t (as it were) bring about its truth.

(It was actually proved in 1993 by Andrew Wiles.)

The anti-realist (of which there are many kinds), on the other hand, would have said that Fermat’s Last Theorem had no truth until it was proved in 1993. Thus, to such an anti-realist, truth = proof.

The problem here is a proposition may be determinately true (or false) if it’s about a flying teapot flying around the sun. However, it may not be determinately true (or false) when it comes to an unproven mathematical statement or theorem. These two cases seem very different.

Bivalence Again

Having made all those anti-realist points above, it can still be argued that the rejection of bivalence isn’t actually a genuine rejection. That is, to argue that there’s a third truth-value (which is indeterminate) isn’t actually a rejection of a proposition’s being determinately true or false. What I mean by that is even if the truth-value of proposition p is indeterminate at this moment of time, then that simply tells us about our epistemic situation at this moment in time. In other words, even a realist can accept that any given proposition does indeed have an indeterminate truth-value for us right now. However, such a proposition is still determinately true (or false) right here and right now.