Paul P. Mealing

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Sunday, 31 December 2023

What are the limits of knowledge?

 This was the Question of the Month in Philosophy Now (Issue 157, August/September 2023) and 11 answers were published in Issue 159, December 2023/January 2024, including mine, which I now post complete with minor edits.

 

Some people think that language determines the limits of knowledge, yet it merely describes what we know rather than limits it, and humans have always had the facility to create new language to depict new knowledge.

There are many types of knowledge, but I’m going to restrict myself to knowledge of the natural world. The ancient Greeks were possibly the first to intuit that the natural world had its own code. The Pythagoreans appreciated that musical pitch had a mathematical relationship, and that some geometrical figures contained numerical ratios. They made the giant conceptual leap that this could possibly be a key to understanding the Cosmos itself.

Jump forward two millennia, and their insight has borne more fruit than they could possibly have imagined. Richard Feynman made the following observation about mathematics in The Character of Physical Law: “Physicists cannot make a conversation in any other language. If you want to learn about nature, to appreciate nature, it is necessary to understand the language that she speaks in. She offers her information only in one form.”

Meanwhile, the twentieth century logician Kurt Gödel proved that in any self-consistent, axiom-based, formal mathematical system, there will always be mathematical truths that can’t be proved true using that system. However, they potentially can be proved if one expands the axioms of the system. This infers that there is no limit to mathematical truths.

Alonso Church’s ‘paradox of unknowability’ states, “unless you know it all, there will always be truths that are by their very nature unknowable.” This applies to the physical universe itself. Specifically, since the vast majority of the Universe is unobservable, and possibly infinite in extent, most of it will remain forever unknowable. Given that the limits of knowledge are either infinite or unknowable in both the mathematical and physical worlds, then those limits are like a horizon that retreats as we advance towards it.

Sunday, 3 December 2023

Philosophy in practice

 As someone recently pointed out, my posts on this blog invariably arise from things I have read (sometimes watched) and I’ve already written a post based on a column I read in the last issue of Philosophy Now (No 158, Oct/Nov 2023).
 
Well, I’ve since read a few more articles and they have prompted quite a lot of thinking. Firstly, there is an article called What Happened to Philosophy? By Dr Alexander Jeuk, who is to quote: “an independent researcher writing on philosophy, economics, politics and the institutional structure of science.” He compares classical philosophy (in his own words, the ‘great philosophers’) with the way philosophy is practiced today in academia – that place most us of don’t visit and wouldn’t understand the language if we did.
 
I don’t want to dwell on it, but it’s relevance to this post is that he laments the specialisation of philosophy, which he blames (if I can use that word) on the specialisation of science. The specialisation of most things is not a surprise to anyone who works in a technical field (I work in engineering). I should point out that I’m not a technical person, so I’m a non-specialist who works in a specialist field. Maybe that puts me in a better position than most to address this. I have a curious mind that started young and my curiosity shifted as I got older, which means I never really settled into one area of knowledge, and, if I had, I didn’t quite have the intellectual ability to become competent in it. And that’s why this blog is a bit eclectic.
 
In his conclusion, Jeuk suggests that ‘great philosophy’ should be looked for ‘in the classics, and perhaps encourage a re-emergence of great philosophical thought from outside academia.’ He mentions social media and the internet, which is relevant to this blog. I don’t claim to do ‘great philosophy’; I just attempt to disperse ideas and provoke thought. But I think that’s what philosophy represents to most people outside of academia. Academic philosophy has become lost in its obsession with language, whilst using language that most find obtuse, if not opaque.
 
Another article was titled Does a Just Society Require Just Citizens? By Jimmy Aflonso Licon, Assistant Teaching Professor in Philosophy at Arizona State University. I wouldn’t call the title misleading, but it doesn’t really describe the content of the essay, or even get to the gist of it, in my view. Licon introduces a term, ‘moral mediocrity’, which might have been a better title, if an enigmatic one, as it’s effectively what he discusses for the next, not-quite 3 pages.
 
He makes the point that our moral behaviour stems from social norms – a point I’ve made myself – but he makes it more compellingly. Most of us do ‘moral’ acts because that’s what our peers do, and we are species-destined (my term, not his) to conform. This is what he calls moral mediocrity, because we don’t really think it through or deliberate on whether it’s right or wrong, though we might convince ourselves that we do. He makes the salient point that if we had lived when slavery was the norm, we would have been slave-owners (assuming the reader is white, affluent and male). Likewise, suffrage was once anathema to a lot of women, as well as men. This supports my view that morality changes, and what was once considered radical becomes conservative. And such changes are usually generational, as we are witnessing in the current age with marriage equality.
 
He coins another term, when he says ‘we are the recipients of a moral inheritance’ (his italics). In other words, the moral norms we follow today, we’ve inherited from our forebears. Towards the end of his essay, he discusses Kant’s ideas on ‘duty’. I won’t go into that, but, if I understand Licon’s argument correctly, he’s saying that a ‘just society’ is one that has norms and laws that allow moral mediocrity, whereby its members don’t have to think about what’s right or wrong; they just follow the rules. This leads to his very last sentence: And this is fundamentally the moral problem with moral mediocrity: it is wrongly motivated.
 
I’ve written on this before, and, given the title as well as the content, I needed to think on what I consider leads to a ‘just society’. And I keep coming back to the essential need for trust. Societies don’t function without some level of trust, but neither do personal relationships, contractual arrangements or the raising of children.
 
And this leads to the third article in the same issue, Seeing Through Transparency, by Paul Doolan, who ‘teaches philosophy at Zurich International School and is the author of Collective Memory and the Dutch East Indies; Unremembering Decolonization (Amsterdam Univ Press, 2021).
 
In effect, he discusses the paradoxical nature of modern societies, whereby we insist on ‘transparency’ yet claim that privacy is sacrosanct – see the contradiction? Is this hypocrisy? And this relates directly to trust. Without transparency, be it corporate or governmental, we have trust issues. My experience is that when it comes to personal relationships, it’s a given, a social norm in fact, that a person reveals as much of their interior life as they want to, and it’s not ours to mine. An example of moral mediocrity perhaps. And yet, as Doolan points out, we give away so much on social media, where our online persona takes on a life of its own, which we cultivate (this blog not being an exception).
 
I think there does need to be transparency about decisions that affect our lives collectively, as opposed to secrets we all keep for the sake of our sanity. I have written dystopian fiction where people are surveilled to the point of monitoring all speech, and explored how it affects personal relationships. This already happens in some parts of the world. I’ve also explored a dystopian scenario where the surveillance is less obvious – every household has an android that monitors all activity. We might already have that with certain devices in our homes. Can you turn them off?  Do you have a device that monitors everyone who comes to your door?
 
The thing is that we become habituated to their presence, and it becomes part of our societal structure. As I said earlier, social norms change and are largely generational. Now they incorporate AI as well, and it’s happening without a lot of oversight or consultation with users. I don’t want to foster paranoia, but the genie has already escaped and I’d suggest it’s a matter of how we use it rather than how we put it back in the bottle.

Leaving that aside, Doolan also asks if you would behave differently if you could be completely invisible, which, of course, has been explored in fiction. We all know that anonymity fosters bad behaviour – just look online. One of my tenets is that honesty starts with honesty to oneself; it determines how we behave towards others.
 
I also know that an extreme environment, like a prison camp, can change one’s moral compass. I’ve never experienced it, but my father did. It brings out the best and worst in people, and I’d contend that you wouldn’t know how you’d be affected if you haven’t experienced it. This is an environment that turns Licon’s question on its head: can you be just in an intrinsically unjust environment?