All topics
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What is Mary’s Room actually supposed to show?
Frank Jackson's "Mary's Room" is easy to present badly, and I'd like to present it correctly at a study circle I'm leading. Mary is a brilliant neuroscientist who has lived her whole life in a black-and-white room. She knows every physical fact…
Started by Priya Raghavan4 replies -
Al-Ghazali’s Deliverance from Error as a story about information overload
I've been reading al-Ghazali's Deliverance from Error (al-Munqidh min al-Dalal), written late in his life. He describes his search for certain knowledge among four groups: the theologians, the Batinis (who relied on an infallible teacher), the philosophers, and the Sufis. Before that,…
Started by Nur Aisyah Rahman4 replies -
The hard problem from a psychology student’s point of view
In 1995 David Chalmers distinguished the "easy problems" of consciousness (explaining discrimination, attention, reportability, the control of behaviour) from the "hard problem": explaining why any of this is accompanied by subjective experience at all. In my psychology courses we study the easy…
Started by Elif Yıldız4 replies -
What did Gorgias actually say about the power of speech in the Encomium of Helen?
Persuasion is literally my rent. A mate who did classics told me there's an ancient Greek speech where Gorgias argues that words work on people like drugs, and that it's all in a speech defending Helen of Troy, of all people. That…
Started by Gemma Pritchard4 replies -
Why does logic count ‘if the moon is cheese, then 2 + 2 = 5’ as true?
Half my jokes are conditionals. So I was pleased to find a whole branch of logic about "if". Then I hit the truth table and it broke my brain. Apparently in propositional logic "if P then Q" is false only when P…
Started by Gemma Pritchard4 replies -
My daughter asked where her mind is kept. Is Ryle’s ‘category mistake’ the answer?
My daughter is seven. Last week, while I was plaiting her hair, she asked me where her mind is kept. "Is it in my head, like my brain? Or is it behind my eyes?" I said it was in her brain, and…
Started by Thamarai Raman4 replies -
What is Rawls’s veil of ignorance actually supposed to show?
When I talk about Rawls with the younger economists at work, they treat the original position as a risk-aversion exercise. Behind the veil you don't know whether you'll be rich or poor, so you pick the society where the worst-off do best:…
Started by Javier Ferrandis4 replies -
Reading group: Nagarjuna, Mulamadhyamakakarika chapter 1 (on conditions)
The Mūlamadhyamakakārikā opens with an examination of causal conditions (pratyaya). The first verse says that nothing arises from itself, from something else, from both, or without a cause. The chapter then examines the four types of condition recognised by the Abhidharma schools:…
Started by Meera Kulkarni4 replies -
Reading group: the Analects, Books 1–4
After a year with Kant I want to read an ethics built on something other than rules. The Analects (Lunyu) were compiled by Confucius's disciples and their students after his death, and they read more like a notebook of conversations than a…
Started by Henrike Vogel4 replies -
Is the Allegory of the Cave a theory of education first and a metaphysics second?
The cave in Republic VII is usually read as a story about two worlds: shadows down here, Forms up there. That's not wrong, but I've come to think it isn't the emphasis Plato gives it. Socrates introduces the image as a picture…
Started by Giulia Ferrante4 replies -
What did Bell’s theorem actually prove? I keep hearing three different answers
I'm doing philosophy with some physics. In the space of one week I have been told by three different people that Bell's theorem proves: that the universe is non-local; that there are no hidden variables in quantum mechanics; that Einstein was wrong.…
Started by Ethan Mercer4 replies -
If numbers aren’t physical, how could we ever know anything about them?
I count tablets all day. Three tablets, thirty tablets, a strip of ten. The tablets are physical: I can drop them, and I do. But the three is not in any of them. You can't drop a three. My son's maths teacher…
Started by Hetal Shah4 replies -
I never agreed to obey the state. Why do I owe it anything?
This week's lecture was on the social contract, and since then one thought keeps coming back while I sit in traffic. I never signed anything. I was born here, like my parents. Nobody asked me if I agreed to the laws, the…
Started by Serkan Aydoğdu4 replies -
Kant says taste is subjective but everyone ought to agree with it. How is that not a contradiction?
Yesterday a lecturer explained Kant's view of beauty and I nearly missed a stop. As far as I understood: when I call something beautiful, I am not reporting a property I can prove with concepts; it rests on my feeling of pleasure.…
Started by Serkan Aydoğdu4 replies -
What does Hume mean when he says reason is the slave of the passions?
Yesterday a lecturer quoted Hume saying that reason is the slave of the passions, and then the traffic got bad and I missed the explanation. It worries me. Epictetus is the philosopher who makes most sense to me in traffic, and he…
Started by Serkan Aydoğdu4 replies -
What is the doctrine of double effect, and did Aquinas really come up with it?
Yesterday's lecture mentioned the "doctrine of double effect" and said it goes back to Thomas Aquinas. The lecturer moved on quickly and I didn't fully follow. Here's what I understood. If I swerve to avoid a child who runs into the road…
Started by Serkan Aydoğdu4 replies -
“The ends justify the means”: obviously true or obviously false? I can’t decide which
I hear “the ends justify the means” constantly, at work and at gigs. My team leader says it when he wants us to hit targets by telling customers a tiny lie about wait times. A comic I know says it about stealing…
Started by Gemma Pritchard4 replies -
What is the anthropic principle, and is it an explanation or a polite way of not explaining?
I drive a bus in Ankara and listen to lectures between stops. One lecture said that the physical constants of the universe seem "finely tuned" for life, and then mentioned "the anthropic principle", saying something like: of course we observe a universe…
Started by Serkan Aydoğdu4 replies -
What makes a death a “good death”?
In end-of-life care people talk constantly about a "good death". Usually it means: pain controlled, the person not alone, their wishes known and respected, family prepared, no futile interventions at the end. That's a practical list, and I believe in it. But…
Started by Elin Hedqvist4 replies -
Ahimsa in Jainism: how far can non-harm be taken?
I grew up next door to a Jain family in Hyderabad. The grandmother wouldn't eat after sunset (to avoid harming insects attracted to light), and they avoided root vegetables, since pulling them up kills the whole plant and the many small organisms…
Started by Anand Kurup4 replies -
Reading group: The Second Sex, Introduction and Part One (“Destiny”)
Let's begin The Second Sex (1949) with the Introduction and Part One of the first volume, the three chapters on biology, psychoanalysis and historical materialism. A note on translations. The 1953 English translation by H. M. Parshley was abridged and is unreliable…
Started by Claire Dubois4 replies -
When Aristotle calls humans political animals, does he mean we need a government?
At least once a debate tournament some student cites Aristotle: "man is a political animal." It always gets used to mean that people need government, or that humans are naturally into politics, like campaigning and voting. I have a nagging feeling that's…
Started by Sam Ellery4 replies -
What does Langdon Winner mean when he says artifacts have politics?
Anyone who builds puzzle games already believes that rules built into a world shape what people do in it. If I put a locked door at the end of a corridor, players will spend twenty minutes looking for a key, and none…
Started by Hsieh Wei-ting4 replies -
Can someone explain what the Nyāya logicians meant by vyāpti (pervasion)?
My training is entirely in Western formal logic, and I've started reading Matilal's The Character of Logic in India. I understand the standard example: there is fire on the hill because there is smoke, and wherever there is smoke there is fire,…
Started by Tomasz Szewczak4 replies -
Essence and existence: why Ibn Sina’s distinction mattered to Aquinas
In the metaphysics of the Shifa', Ibn Sina distinguishes what a thing is, its essence or quiddity (mahiyya), from the fact that it is, its existence (wujud). You can understand what a triangle or a phoenix is without knowing whether any exists.…
Started by Layla Sfeir4 replies -
“That’s not what I meant”: a comic on jokes, apologies and who owns the meaning
Friday night in a club in Salford, I did a bit about my mum's driving. A bloke near the front decided it was about him, because he'd heckled about my accent earlier, and he came up afterwards furious. My first instinct was…
Started by Gemma Pritchard4 replies -
Nagarjuna’s tetralemma is not a rejection of logic
The catuṣkoṭi, or tetralemma, considers four options for any proposition: it is, it is not, both, neither. In the Mūlamadhyamakakārikā, Nāgārjuna often rejects all four. For example, the Buddha after death neither exists, nor doesn't exist, nor both, nor neither. Some readers…
Started by Meera Kulkarni4 replies -
What is the difference between my arm rising and my raising it? A capoeirista asks
One of my capoeira students brought me a question from her philosophy class that I can't stop thinking about: what is the difference between your arm rising and you raising your arm? In the roda this matters all the time. A good…
Started by Jorge Bonfim4 replies -
Is farming labour or work? Trying to understand Arendt’s distinction
This month my son sent me a chapter about Hannah Arendt, who says English uses "work" for three different things: labour, work and action. I wanted to know which one I do on my farm. From what I understood, labour is what…
Started by Akosua Mensah4 replies -
“Natural birth”: does an evolutionary story about a trait tell us whether it is good?
On the maternity ward I hear the word "natural" all day, pulling in opposite directions. Some women are told that birth without intervention is best because "your body evolved to do this". Others are told that labour pain is natural and therefore…
Started by Farhana Akter4 replies