#67 – David Chalmers on the nature and ethics of consciousness

#67 – David Chalmers on the nature and ethics of consciousness

What is it like to be you right now? You're seeing this text on the screen, smelling the coffee next to you, and feeling the warmth of the cup. There’s a lot going on in your head — your conscious experience.

Now imagine beings that are identical to humans, but for one thing: they lack this conscious experience. If you spill your coffee on them, they’ll jump like anyone else, but inside they'll feel no pain and have no thoughts: the lights are off.

The concept of these so-called 'philosophical zombies' was popularised by today’s guest — celebrated philosophy professor David Chalmers — in order to explore the nature of consciousness. In a forthcoming book he poses a classic 'trolley problem':

"Suppose you have a conscious human on one train track, and five non-conscious humanoid zombies on another. If you do nothing, a trolley will hit and kill the conscious human. If you flip a switch to redirect the trolley, you can save the conscious human, but in so doing kill the five non-conscious humanoid zombies. What should you do?"

Many people think you should divert the trolley, precisely because the lack of conscious experience means the moral status of the zombies is much reduced or absent entirely.

So, which features of consciousness qualify someone for moral consideration? One view is that the only conscious states that matter are those that have a positive or negative quality, like pleasure and suffering. But Dave’s intuitions are quite different.

Links to learn more, summary and full transcript.
Advice on how to read our advice.
Anonymous answers on: bad habits, risk and failure.

Instead of zombies he asks us to consider 'Vulcans', who can see and hear and reflect on the world around them, but are incapable of experiencing pleasure or pain.

Now imagine a further trolley problem: suppose you have a normal human on one track, and five Vulcans on the other. Should you divert the trolley to kill the five Vulcans in order to save the human?

Dave firmly believes the answer is no, and if he's right, pleasure and suffering can’t be the only things required for moral status. The fact that Vulcans are conscious in other ways must matter in itself.

Dave is one of the world's top experts on the philosophy of consciousness. He helped return the question 'what is consciousness?' to the centre stage of philosophy with his 1996 book 'The Conscious Mind', which argued against then-dominant materialist theories of consciousness.

This comprehensive interview, at over four hours long, outlines each contemporary theory of consciousness, what they have going for them, and their likely ethical implications. Those theories span the full range from illusionism, the idea that consciousness is in some sense an 'illusion', to panpsychism, according to which it's a fundamental physical property present in all matter.

These questions are absolutely central for anyone who wants to build a positive future. If insects were conscious our treatment of them could already be an atrocity. If computer simulations of people will one day be conscious, how will we know, and how should we treat them? And what is it about consciousness that matters, if anything?

Dave Chalmers is probably the best person on the planet to ask these questions, and Rob & Arden cover this and much more over the course of what is both our longest ever episode, and our personal favourite so far.

Chapters:

  • Rob's intro (00:00:00)
  • The interview begins (00:02:11)
  • Philosopher’s survey (00:06:37)
  • Free will (00:13:37)
  • Survey correlations (00:20:06)
  • Progress in philosophy (00:35:01)
  • Simulations (00:51:30)
  • The problem of consciousness (01:13:01)
  • Dualism and panpsychism (01:26:52)
  • Is consciousness an illusion? (01:34:52)
  • Idealism (01:43:13)
  • Integrated information theory (01:51:08)
  • Moral status and consciousness (02:06:10)
  • Higher order views of consciousness (02:11:46)
  • The views of philosophers on eating meat (02:20:23)
  • Artificial consciousness (02:34:25)
  • The zombie and vulcan trolley problems (02:38:43)
  • Illusionism and moral status (02:56:12)
  • Panpsychism and moral status (03:06:19)
  • Mind uploading (03:15:58)
  • Personal identity (03:22:51)
  • Virtual reality and the experience machine (03:28:56)
  • Singularity (03:42:44)
  • AI alignment (04:07:39)
  • Careers in academia (04:23:37)
  • Having fun disagreements (04:32:54)
  • Rob’s outro (04:42:14)


Producer: Keiran Harris.

Avsnitt(299)

#2 - David Spiegelhalter on risk, stats and improving understanding of science

#2 - David Spiegelhalter on risk, stats and improving understanding of science

Recorded in 2015 by Robert Wiblin with colleague Jess Whittlestone at the Centre for Effective Altruism, and recovered from the dusty 80,000 Hours archives. David Spiegelhalter is a statistician at the University of Cambridge and something of an academic celebrity in the UK. Part of his role is to improve the public understanding of risk - especially everyday risks we face like getting cancer or dying in a car crash. As a result he’s regularly in the media explaining numbers in the news, trying to assist both ordinary people and politicians focus on the important risks we face, and avoid being distracted by flashy risks that don’t actually have much impact. Summary, full transcript and extra links to learn more. To help make sense of the uncertainties we face in life he has had to invent concepts like the microlife, or a 30-minute change in life expectancy. (https://en.wikipedia.org/wiki/Microlife) We wanted to learn whether he thought a lifetime of work communicating science had actually had much impact on the world, and what advice he might have for people planning their careers today.

21 Juni 201733min

#1 - Miles Brundage on the world's desperate need for AI strategists and policy experts

#1 - Miles Brundage on the world's desperate need for AI strategists and policy experts

Robert Wiblin, Director of Research at 80,000 Hours speaks with Miles Brundage, research fellow at the University of Oxford's Future of Humanity Institute. Miles studies the social implications surrounding the development of new technologies and has a particular interest in artificial general intelligence, that is, an AI system that could do most or all of the tasks humans could do. This interview complements our profile of the importance of positively shaping artificial intelligence and our guide to careers in AI policy and strategy Full transcript, apply for personalised coaching to work on AI strategy, see what questions are asked when, and read extra resources to learn more.

5 Juni 201755min

#0 – Introducing the 80,000 Hours Podcast

#0 – Introducing the 80,000 Hours Podcast

80,000 Hours is a non-profit that provides research and other support to help people switch into careers that effectively tackle the world's most pressing problems. This podcast is just one of many things we offer, the others of which you can find at 80000hours.org. Since 2017 this show has been putting out interviews about the world's most pressing problems and how to solve them — which some people enjoy because they love to learn about important things, and others are using to figure out what they want to do with their careers or with their charitable giving. If you haven't yet spent a lot of time with 80,000 Hours or our general style of thinking, called effective altruism, it's probably really helpful to first go through the episodes that set the scene, explain our overall perspective on things, and generally offer all the background information you need to get the most out of the episodes we're making now. That's why we've made a new feed with ten carefully selected episodes from the show's archives, called 'Effective Altruism: An Introduction'. You can find it by searching for 'Effective Altruism' in your podcasting app or at 80000hours.org/intro. Or, if you’d rather listen on this feed, here are the ten episodes we recommend you listen to first: • #21 – Holden Karnofsky on the world's most intellectual foundation and how philanthropy can have maximum impact by taking big risks • #6 – Toby Ord on why the long-term future of humanity matters more than anything else and what we should do about it • #17 – Will MacAskill on why our descendants might view us as moral monsters • #39 – Spencer Greenberg on the scientific approach to updating your beliefs when you get new evidence • #44 – Paul Christiano on developing real solutions to the 'AI alignment problem' • #60 – What Professor Tetlock learned from 40 years studying how to predict the future • #46 – Hilary Greaves on moral cluelessness, population ethics and tackling global issues in academia • #71 – Benjamin Todd on the key ideas of 80,000 Hours • #50 – Dave Denkenberger on how we might feed all 8 billion people through a nuclear winter • 80,000 Hours Team chat #3 – Koehler and Todd on the core idea of effective altruism and how to argue for it

1 Maj 20173min

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