Peter Railton’s Uehiro Lectures 2022
Written by Maximilian Kiener
Professor Peter Railton, from the University of Michigan, delivered the 2022 Uehiro Lectures in Practical Ethics. In a series of three consecutive presentations entitled ‘Ethics and Artificial Intelligence’ Railton focused on what has become one the major areas in contemporary philosophy: the challenge of how to understand, interact with, and regulate AI.
Railton’s primary concern is not the ‘superintelligence’ that could vastly outperform humans and, as some have suggested, threaten human existence as a whole. Rather, Railton focuses on what we are already confronted with today, namely partially intelligent systems that increasingly execute a variety of tasks, from powering autonomous cars to assisting medical diagnostics, algorithmic decision-making, and more. Continue reading
Hang Onto Your Soul
By Charles Foster
Image: https://the-conscious-mind.com
I can’t avoid Steven Pinker at the moment. He seems to be on every page I read. I hear him all the time, insisting that I’m cosmically insignificant; that my delusional thoughts, my loves, my aspirations, and the B Minor Mass’s effect on me are merely chemical events. I used to have stuck up above my desk (on the principle that you should know your enemy), his declaration (as stridently irrational as the sermon of a Kentucky Young Earth Creationist): ‘A major breakthrough of the Scientific Revolution – perhaps its greatest breakthrough – was to refute the intuition that the Universe is saturated with purpose.’ 1
He tells me that everything is getting better. Has been getting better since the first eruption of humans into the world.2 That there’s demonstrable progress (towards what, one might ask, if the universe has no purpose? – but I’ll leave that for the moment). That there’s less violence; there are fewer mutilated bodies per capita. He celebrates his enlightenment by mocking my atavism: he notes that the Enlightenment came after the Upper Palaeolithic, and (for the law of progress admits no exceptions) concludes that that means that our Enlightenment age is better than what went before. Continue reading
Exercise, Population Health and Paternalism
Written by Rebecca Brown
The NHS is emphatic in its confidence that exercise is highly beneficial for health. From their page on the “Benefits of exercise” come statements like:
“Step right up! It’s the miracle cure we’ve all been waiting for”
“This is no snake oil. Whatever your age, there’s strong scientific evidence that being physically active can help you lead a healthier and happier life”
“Given the overwhelming evidence, it seems obvious that we should all be physically active. It’s essential if you want to live a healthy and fulfilling life into old age”.
Setting aside any queries about the causal direction of the relationship between exercise and good health, or the precise effect size of the benefits exercise offers, it at least seems that the NHS is convinced that it is a remarkably potent health promotion tool. Continue reading
The Aliens Are Coming
By Charles Foster
It’s said that 2022 is going to be a bumper year for UFO revelations. Secret archives are going to be opened and the skies are going to be probed as never before for signs of extraterrestrial life.
This afternoon we might be presented with irrefutable evidence not just of life beyond the Earth, but of intelligences comparable in power and subtlety to our own. What then? Would it change our view of ourselves and the universe we inhabit? If so, how? Would it change our behaviour? If so how?
Much would depend, no doubt, on what we knew or supposed about the nature and intentions of the alien intelligences. If they seemed hostile, intent on colonising Planet Earth and enslaving us, our reactions would be fairly predictable. But what if the reports simply disclosed the existence of other intelligences, together with the fact that those intelligences knew about and were interested in us? Continue reading
Three Observations about Justifying AI
Written by: Anantharaman Muralidharan, G Owen Schaefer, Julian Savulescu
Cross-posted with the Journal of Medical Ethics blog
Consider the following kind of medical AI. It consists of 2 parts. The first part consists of a core deep machine learning algorithm. These blackbox algorithms may be more accurate than human judgment or interpretable algorithms, but are notoriously opaque in terms of telling us on what basis the decision was made. The second part consists of an algorithm that generates a post-hoc medical justification for the core algorithm. Algorithms like this are already available for visual classification. When the primary algorithm identifies a given bird as a Western Grebe, the secondary algorithm provides a justification for this decision: “because the bird has a long white neck, pointy yellow beak and red eyes”. The justification goes beyond just a description of the provided image or a definition of the bird in question, and is able to provide a justification that links the information provided in the image to the features that distinguish the bird. The justification is also sufficiently fine grained as to account for why the bird in the picture is not a similar bird like the Laysan Albatross. It is not hard to imagine that such an algorithm would soon be available for medical decisions if not already so. Let us call this type of AI “justifying AI” to distinguish it from algorithms which try, to some degree or other, to wear their inner workings on their sleeves.
Possibly, it might turn out that the medical justification given by the justifying AI sounds like pure nonsense. Rich Caruana et al present a case whereby asthmatics were deemed less at risk of dying by pneumonia. As a result, it prescribed less aggressive treatments for asthmatics who contracted pneumonia. The key mistake the primary algorithm made was that it failed to account for the fact that asthmatics who contracted pneumonia had better outcomes only because they tended to receive more aggressive treatment in the first place. Even though the algorithm was more accurate on average, it was systematically mistaken about one subgroup. When incidents like these occur, one option here is to disregard the primary AI’s recommendation. The rationale here is that we could hope to do better than by relying on the blackbox alone by intervening in cases where the blackbox gives an implausible recommendation/prediction. The aim of having justifying AI is to make it easier to identify when the primary AI is misfiring. After all, we can expect trained physicians to recognise a good medical justification when they see one and likewise recognise bad justifications. The thought here is that the secondary algorithm generating a bad justification is good evidence that the primary AI has misfired.
The worry here is that our existing medical knowledge is notoriously incomplete in places. It is to be expected that there will be cases where the optimal decision vis a vis patient welfare does not have a plausible medical justification at least based on our current medical knowledge. For instance, Lithium is used as a mood stabilizer but the reason why this works is poorly understood. This means that ignoring the blackbox whenever a plausible justification in terms of our current medical knowledge is unavailable will tend to lead to less optimal decisions. Below are three observations that we might make about this type of justifying AI.
Impersonality and Non-identity: A Response to Bramble
by Roger Crisp
Consider the following case, from David Boonin:
Wilma. Wilma has decided to have a baby. She goes to her doctor for a checkup and the doctor tells her that…as things now stand, if she conceives, her child will have a disability. . . that clearly has a substantially negative impact on a person’s quality of life. . . [but is not] so serious as to render the child’s life worse than no life at all. . . .[But] Wilma can prevent this from happening. If she takes a tiny pill once a day for two months before conceiving, her child will be perfectly healthy. The pill is easy to take, has no side effects, and will be paid for by her health insurance. . . .Wilma decides that having to take a pill once a day for two months before conceiving is a bit too inconvenient and so chooses to throw the pills away and conceive at once. As a result of this choice, her child is born [with the disability].
Cognitive snobbery: The Unacceptable Bias in Favour of the Conscious
There are many corrosive forms of discrimination. But one of the most dangerous is the bias in favour of consciousness, and the consequent denigration of the unconscious.
We see it everywhere. It’s not surprising. For when we’re unreflective – which is most of the time – we tend to suppose that we are our conscious selves, and that the unconscious is a lower, cruder part of us; a seething atavistic sea full of monsters, from which we have mercifully crawled, making our way ultimately to the sunlit uplands of the neocortex, there to gaze gratefully and dismissively back at what we once were. It’s a picture encoded in our self-congratulatory language: ‘Higher cognitive function’; ‘She’s not to be blamed: she wasn’t fully conscious of the consequences.’: ‘In the Enlightenment we struck off the shackles of superstition and freed our minds to roam.’ Continue reading
How we got into this mess, and the way out
By Charles Foster
This week I went to the launch of the latest book by Iain McGilchrist, currently best known for his account of the cultural effects of brain lateralisation, The Master and His Emissary: The Divided Brain and the Making of the Western World. The new book, The Matter with Things: Our brains, our delusions, and the unmaking of the world is, whatever, you think of the argument, an extraordinary phenomenon. It is enormously long – over 600,000 words packed into two substantial volumes. To publish such a thing denotes colossal confidence: to write it denotes great ambition.
It was commissioned by mainstream publishers who took fright when they saw its size. There is eloquent irony in the rejection on the ground of its length and depth of a book whose main thesis is that reductionism is killing us. It was picked up by Perspectiva press. That was brave. But I’m predicting that Perspectiva’s nerve will be vindicated. It was suggested at the launch that the book might rival or outshine Kant or Hegel. That sounds hysterical. It is a huge claim, but this is a huge book, and the claim might just be right.
Nobody can doubt that we’re in a terrible mess. The planet is on fire; we’re racked with neuroses and governed by charlatans, and we have no idea what sort of creatures we are. We tend to intuit that we are significant animals, but have no language in which to articulate that significance, and the main output of the Academy is to scoff at the intuition. Continue reading
Philosophical Fiddling While the World Burns
By Charles Foster
An unprecedented editorial has just appeared in many health journals across the world. It relates to climate change.
The authors say that they are ‘united in recognising that only fundamental and equitable changes to societies will reverse our current trajectory.’
Climate change, they agree, is the major threat to public health. Here is an excerpt: there will be nothing surprising here:
‘The risks to health of increases above 1.5°C are now well established. Indeed, no temperature rise is “safe.” In the past 20 years, heat related mortality among people aged over 65 has increased by more than 50%.Hi gher temperatures have brought increased dehydration and renal function loss, dermatological malignancies, tropical infections, adverse mental health outcomes, pregnancy complications, allergies, and cardiovascular and pulmonary morbidity and mortality. Harms disproportionately affect the most vulnerable, including children, older populations, ethnic minorities, poorer communities, and those with underlying health problems.’ Continue reading
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