#86 – Hilary Greaves on Pascal's mugging, strong longtermism, and whether existing can be good for us

#86 – Hilary Greaves on Pascal's mugging, strong longtermism, and whether existing can be good for us

Had World War 1 never happened, you might never have existed.

It’s very unlikely that the exact chain of events that led to your conception would have happened otherwise — so perhaps you wouldn't have been born.

Would that mean that it's better for you that World War 1 happened (regardless of whether it was better for the world overall)?

On the one hand, if you're living a pretty good life, you might think the answer is yes – you get to live rather than not.

On the other hand, it sounds strange to say that it's better for you to be alive, because if you'd never existed there'd be no you to be worse off. But if you wouldn't be worse off if you hadn't existed, can you be better off because you do?

In this episode, philosophy professor Hilary Greaves – Director of Oxford University’s Global Priorities Institute – helps untangle this puzzle for us and walks me and Rob through the space of possible answers. She argues that philosophers have been too quick to conclude what she calls existence non-comparativism – i.e, that it can't be better for someone to exist vs. not.

Links to learn more, summary and full transcript.

Where we come down on this issue matters. If people are not made better off by existing and having good lives, you might conclude that bringing more people into existence isn't better for them, and thus, perhaps, that it's not better at all.

This would imply that bringing about a world in which more people live happy lives might not actually be a good thing (if the people wouldn't otherwise have existed) — which would affect how we try to make the world a better place.

Those wanting to have children in order to give them the pleasure of a good life would in some sense be mistaken. And if humanity stopped bothering to have kids and just gradually died out we would have no particular reason to be concerned.

Furthermore it might mean we should deprioritise issues that primarily affect future generations, like climate change or the risk of humanity accidentally wiping itself out.

This is our second episode with Professor Greaves. The first one was a big hit, so we thought we'd come back and dive into even more complex ethical issues.

We discuss:

• The case for different types of ‘strong longtermism’ — the idea that we ought morally to try to make the very long run future go as well as possible
• What it means for us to be 'clueless' about the consequences of our actions
• Moral uncertainty -- what we should do when we don't know which moral theory is correct
• Whether we should take a bet on a really small probability of a really great outcome
• The field of global priorities research at the Global Priorities Institute and beyond

Chapters:

  • The interview begins (00:02:53)
  • The Case for Strong Longtermism (00:05:49)
  • Compatible moral views (00:20:03)
  • Defining cluelessness (00:39:26)
  • Why cluelessness isn’t an objection to longtermism (00:51:05)
  • Theories of what to do under moral uncertainty (01:07:42)
  • Pascal’s mugging (01:16:37)
  • Comparing Existence and Non-Existence (01:30:58)
  • Philosophers who reject existence comparativism (01:48:56)
  • Lives framework (02:01:52)
  • Global priorities research (02:09:25)


Get this episode by subscribing: type 80,000 Hours into your podcasting app. Or read the linked transcript.

Producer: Keiran Harris.
Audio mastering: Ben Cordell.
Transcriptions: Zakee Ulhaq.

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#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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