A Future for Neuroscience

August 13, 2018  |  3 Comments

I think all neuroscientists, all philosophers, all psychologists, and all psychiatrists should basically drop whatever they’re doing and learn Selen Atasoy’s “connectome-specific harmonic wave” (CSHW) framework. It’s going to be the backbone of how we understand the brain and mind in the future, and it’s basically where predictive coding was in 2011, or where blockchain was in 2009. Which is to say, it’s destined for great things and this is a really good time to get into it.

I described CSHW in my last post as:

Selen Atasoy’s Connectome-Specific Harmonic Waves (CSHW) is a new method for interpreting neuroimaging which (unlike conventional approaches) may plausibly measure things directly relevant to phenomenology. Essentially, it’s a method for combining fMRI/DTI/MRI to calculate a brain’s intrinsic ‘eigenvalues’, or the neural frequencies which naturally resonate in a given brain, as well as the way the brain is currently distributing energy (periodic neural activity) between these eigenvalues.

This post is going to talk a little more about how CSHW works, why it’s so powerful, and what sorts of things we could use it for.

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Interview & podcast

November 15, 2018  |  No Comments

Adam Ford recently posted some bits from an interview we did a while back- an excerpt from part 1:

Perhaps the clearest and most important ethical view I have is that [consequentialist] ethics must ultimately “compile” to physics. What we value and what we disvalue must ultimately cash out in terms of particle arrangements & dynamics, because these are the only things we can actually change. And so if people are doing ethics without caring about making their theories cash out in physical terms, they’re not actually doing ethics- they’re doing art, or social signaling, or something which can serve as the inspiration for a future ethics.

The analogy I’d offer here is that we can think about our universe as a computer, and ethics as choosing a program to run on this computer. Unfortunately, most ethicists aren’t writing machine-code, or even thinking about things in ways that could be easily translated to machine-code. Instead, they’re writing poetry about the sorts of programs that might be nice to run. But you can’t compile poetry to machine-code! So I hope the field of ethics becomes more physics-savvy and quantitative (although I’m not optimistic this will happen quickly).

Eliezer Yudkowsky refers to something similar with notions of “AI grade philosophy”, “compilable philosophy”, and “computable ethics”, though I don’t think he quite goes far enough (i.e., all the way to physics).

From part 2, on why some communities seem especially confused about consciousness:

First, people don’t realize how bad most existing models of qualia & valence are. Michael Graziano argues that most theories of consciousness are worse than wrong- that they play to our intuitions but don’t actually explain anything. Computationalism, functionalism, fun theory, ‘hedonic brain regions’, ‘pleasure neurochemicals’, the reinforcement learning theory of valence, and so on all give the illusion of explanatory depth but don’t actually explain things in a way which allows us to do anything useful.

Second, people don’t realize how important good understandings of qualia & valence are. They’re upstream of basically everything interesting and desirable.

Here’s what I think has happened, at least in the rationalist community: historically, consciousness research has been a black hole. Smart people go in, but nothing comes out. So communities (such as physicists and LessWrong) naturally have an interest in putting up a fence around the topic with a sign that says ‘Don’t go here!’ – But over time, people forgot why the mystery was blocked off, and started to think that the mystery doesn’t exist. This leads to people actively avoiding thinking about these topics without being able to articulate why.

And from part 3, on the need for bold, testable theories (and institutions which can generate them):

I would agree with [Thomas] Bass that we’re swimming in neuroscience data, but it’s not magically turning into knowledge. There was a recent paper called “Could a neuroscientist understand a microprocessor?” which asked if the standard suite of neuroscience methods could successfully reverse-engineer the 6502 microprocessor used in the Atari 2600 and NES. This should be easier than reverse-engineering a brain, since it’s a lot smaller and simpler, and since they were analyzing it in software they had all the data they could ever ask for, but it turned out that the methods they were using couldn’t cut it. Which really begs the question of whether these methods can make progress on reverse-engineering actual brains. As the paper puts it, neuroscience thinks it’s data-limited, but it’s actually theory-limited.

The first takeaway from this is that even in the age of “big data” we still need theories, not just data. We still need people trying to guess Nature’s structure and figuring out what data to even gather. Relatedly, I would say that in our age of “Big Science” relatively few people are willing or able to be sufficiently bold to tackle these big questions. Academic promotions & grants don’t particularly reward risk-taking.

I also did a podcast with Adrian Nelson of Waking Cosmos where we talked about consciousness research, valence, ethics, and applying these concepts to non-biological objects (e.g. black holes):

 

A new theory of Open Individualism

September 1, 2018  |  No Comments

My colleague Andrés recently wrote about various theories of personal identity, and how a lack of a clear consensus here poses a challenge to ethics. From his post:

Personal Identity: Closed, Empty, Open

In Ontological Qualia I discussed three core views about personal identity. For those who have not encountered these concepts, I recommend reading that article for an expanded discussion.

In brief:

1. Closed Individualism: You start existing when you are born, and stop when you die.

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Seed ontologies

June 3, 2018  |  No Comments

Chatting with people at a recent conference on consciousness (TSC2018), I had the feeling of strolling through an alchemist’s convention: lots of optimistic energy & clever ideas, but also a strong sense that the field is pre-scientific. In short, there was a lot of overly-confident hand-waving.

But there were also a handful of promising ideas that stood out, that seemed like they could form at least part of the seed for an actual science of qualia; something that could transform the study of mind from alchemy to chemistry. Today I want to list these ideas, and say a few things about their ecosystem.

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Why are humans good?

March 19, 2018  |  No Comments

Are humans worthy of colonizing the universe? Are we particularly awesome and benevolent, moreso than a random mind sampled from mindspace?

The following isn’t a full argument, but I want to point toward two things humans seem to do:

  • First, our brains are set up in such a way that we stochastically seek out pleasant states of mind. (I think this is a contingent fact about humans, not a universal for intelligent beings);
  • Second, we model other beings through empathy (i.e. we’re ‘qualia resonators’ and take on aspects of the phenomenology of those around us, insofar as we can perceive it).

These two things combine in a very interesting way: left to our individual devices, we tend to adapt our environment such that it embodies many beings with positive valence, and their positive valence becomes our positive valence. The domestication and adaptation of wolves is a good example: dogs are basically four-legged happiness machines that we keep around because their fantastic qualia rubs off on us.

Now of course there are a million caveats: we’re often bad at these things, empathy-based behavior has a ton of failure-modes, this doesn’t address hedonic set-points or game-theoretic traps, etc. But the way these two things interact is a big reason I like humanity, and want to preserve it.

Rescuing Philosophy

October 2, 2017  |  No Comments

I.

Philosophy has lost much of its energy, focus, and glamor in our modern era. What happened?

I’d suggest that five things went wrong:

1. Historical illegibility. Historically, ‘philosophy’ is what you do when you don’t know what to do. This naturally involves a lot of error. Once you figure out a core ontology and methodology for your topic, you stop calling it ‘philosophy’ and start calling it ‘science’, ‘linguistics’, ‘modal logic’, and so on. This is a very important, generative process, but it also means that if you look back at the history of philosophy, you basically only see ideas that are, technically speaking, wrong. This gives philosophers trying to ‘carry on the tradition’ a skewed understanding of what philosophy is, and how to do it.

2. Evaporative cooling. The fact that the most successful people, ideas, ontologies/methodologies, and tools tend to leave philosophy to found their own disciplines leads to long-term problems with quality. We can think of this as an evaporative cooling effect where philosophy is left with the fakest of problems, and the worst, most incoherent and confused ways to frame what real problems are left.

3. Lack of feedback loops. Good abstract philosophy is really hard to do right, it’s hard to distinguish good philosophy from the bad, and the value of doing philosophy well isn’t as immediately apparent as, say, chemistry. This leads to ‘monkey politics’ playing a large role in which ideas gain traction, which in turn drives a lot of top talent away.

4. Professionalization. Turning metaphysical confusion into something clear enough to build a new science on tends to be a very illegible process, full of false-starts, recontextualizations, and unpredictable breakthroughs. This is really hard to systematically teach students how to do, and even harder to plan an academic budget around. As philosophy became regularized and professionalized– something that you can have a career in– it was also pushed toward top-down legibility. This resulted in less of a focus on grappling with metaphysical uncertainty and more focus on institutionally-legible things such as scholarship, incremental research, teaching, and so on. Today, the discipline is often taught and organized academically as a ‘history of ideas’, based on how past philosophers carved various problem-spaces.

5. Postmodernism. Philosophy got hit pretty hard by postmodernism — and insofar as philosophy was the traditional keeper of theories of meaning, and insofar as postmodernism attacked all sources of meaning, philosophy suffered more than other disciplines. Likewise, academic philosophy has inherited all the problems of modern academia, of which there are many.

I’m painting with a broad brush here, and I should note that there are pockets of brilliant academic philosophers out there doing good, and even heroic, work in spite of these structural conditions. #notallphilosophers. But I don’t think many of these would claim they’re happy with modern academic philosophy’s structural conditions or trajectory.

And this matters, since philosophy is still necessary. There’s a *lot* of value in having a solid philosophical toolset, and having a healthy intellectual tradition of being mindful about ontological questions, epistemology, and so on. As David Pearce often points out, there’s no clean way to abstain from thorny philosophical issues: “The penalty of not doing philosophy isn’t to transcend it, but simply to give bad philosophical arguments a free pass.”


II.

So philosophy is broken. What do we do about it?

My friend Sebastian Marshall describes the ‘evaporative cooling’ philosophy has undergone, and suggests that we should try to rescue and reclaim philosophy:

So, this bastardized divorced left-behind philosophy will be here to stay in some form or fashion. We can’t get rid of it… but it’s also not necessary to get rid of it.

Turning to better news, even in mainstream philosophy, there are still sane and sound branches doing good work, like logic (which is basically math) and philosophy of mind (which is rapidly becoming neuroscience but which hasn’t yet evaporatively cooled out of philosophy).

It wouldn’t take very many people reclaiming the word philosophy as a love of wisdom to begin to turn things around.

Genuinely good philosophy is happening all over the place – though it’s rarely people in fields that don’t fight back at all. Indeed, you see computer programming and financiers doing some of the best philosophy now – Paul Graham, Eliezer Yudkowsky, Ray Dalio, Charlie Munger, Nassim Taleb. When the computer scientist get something wrong, their code doesn’t work. When the financier gets something wrong, they lose a lot of money. Excellent philosophers still come of the military – John Boyd and Hyman Rickover to name two recent Americans – and they come out of industrial engineering, like Eli Goldratt.

That these people are currently not classified as philosophers is simply an error– let the people doing uselessness in the towers call themselves “theoretical screwaroundists” or whatever other more palatable name they might come up with for themselves; genuine philosophy is alive and well, even as the word points to decayed and failing institutions.

There would clearly be enormous benefits to reclaiming the word “philosophy” for serious generative work. But I worry it’s going to be really hard.

Words have a lifecycle- often, they start out full of focus, wit, and life, able to vividly convey some key relationship. As time goes on, however, they lose this special something as they become normalized and regress toward the linguistic mean. Part of being a good writer is being in-tune with what words & phrases still have life, and part of being a great writer (like Shakespeare) is minting new ones. My sense is that “philosophy” doesn’t have much sparkle left, and it may be preferable to coin a new word.

Unfortunately, I don’t know of any better words that would encapsulate everything we’d want, and it may be very difficult to rally people behind a new term unless it’s really good. Even though academic philosophy is in terrible shape, the term ‘philosophy’ is still an effective Schelling point; still prime memetic real-estate. So, pending that better option, I think Sebastian’s right and we do need to do what we can to rescue & reclaim philosophy.

III.

How do we rescue philosophy? — I think we need to think about this both in terms of individual tactics and collective strategy.

Individual tactics: survival and value creation in an unfriendly environment

Essentially, those that wish to make a notable, real, and durable contribution to philosophy should understand that association with academia is a double-edged sword. On the plus side, it can give people credibility, access, and fellowship with other academics, apprenticeships with established thinkers, maybe a steady income, and a great excuse to engage deeply with philosophy. On the other hand, by going into academic philosophy someone is essentially granting an unhealthy, partially moribund system broad influence over their local incentives, memetic milieu, and aesthetic. That’s a really big deal.

A personal aside: I struggled with how to navigate this while writing Principia Qualia. Clearly a new philosophical work on consciousness should engage with other work in the space– and there’s a lot of good philosophy of mind out there, work I could probably use and build upon. At the same time, if philosophy’s established ways of framing the problem of consciousness could lead to a solution, it would’ve been solved by now, and by using someone else’s packaged ontology, I’d be at risk of importing their confusion into my foundation. With this in mind I decided that being aware of key landmarks in philosophy was important, but being uncorrelated with philosophy’s past framing was equally important, so I took a minimalist first-principles approach to building my framework and was very careful about what I imported from philosophy and how I used it.

Collective strategy: Schelling points & positive-feedback loops

The machinery of modern academic philosophy is going to resist attempts at reformation, as all rudderless bureaucratic entities do, but it won’t be proactively hostile about it, and in fact a lot of philosophers desperately want change. This means people can engage in open coordination on this problem. I.e., if we can identify Schelling points and plant rallying flags which can help coordinate with potential allies, we could probably make a collective push to fix certain problems or subfields (my sources say this sort of ‘benign takeover’ is already in motion in certain departments of bioethics).

Ultimately, though, fixing philosophy from within probably looks like a better option than it actually is, since (1) entryism is sneaky, always has a bad faith component, and is never as simple as it sounds (if nothing else, you have to fight off other entryists!), and (2) meme flow always goes both ways, and a plan to fix philosophy’s norms faster than its bad norms subvert us is inherently risky. Plenty of good people with magnificent intentions of fixing philosophy go into grad school, only to get lost in the noise, fail to catalyze a positive-feedback-loop, burn out, and give up years later. If you’re going into academic philosophy anyway, then definitely try to improve it, but don’t go into academic philosophy in order to improve it.

Instead, it may be better to build institutions that are separate from modern academic philosophy, and compete against it. Right now, academic philosophy looks “too big to fail”- a juggernaut that, for all its flaws, is still the go-to arbiter of success, authority, and truth in philosophy. And as long as academic philosophy can keep its people stably supplied with money and status, and people on the outside have to scramble for scraps, this isn’t going to change much. But nothing is forever & there are hints of a shift, the world needs better alternatives, and now is a great time to start building them.

In short, I think the best way to fix philosophy may be to to build new (or revive ancient) competing metaphors for what philosophy should be, to solve problems that modern philosophy can’t, to offer a viable refuge for people fleeing academia’s dysfunction, and to make academia come to us if it wants to stay relevant.


IV.

This is essentially what we’re working toward at the Qualia Research Institute: building something new, outside of academic philosophy in order to avoid its dysfunction, but still very much focused on a core problem of philosophy.

I see this happening elsewhere, too: LessWrong is essentially a “hard fork” of epistemology, with different problem-carvings, norms, and methods, which are collectively slowly maturing into the notion of executable philosophy. Likewise, Leverage Research may be crazy, but I’ve got to give them credit for being crazy in a novel and generative way, one which is uncorrelated with the more mundane, depressing ways modern academic philosophy & psychology are crazy. Honorable mentions include Exosphere, an intentional community I’m pretty sure Aristotle would have felt right at home in, and Alexandros Pagidas, a refugee from academic philosophy who’s trying to revive traditional Greek-style philosophical fight clubs (which, to be honest, sound kind of fun).

There are a lot of these little seeds around. Not all of them will sprout into something magnificent. But I think most are worth watering.

Against functionalism: why I think the Foundational Research Institute should rethink its approach

July 20, 2017  |  No Comments

The following is my considered evaluation of the Foundational Research Institute, circa July 2017. I discuss its goal, where I foresee things going wrong with how it defines suffering, and what it could do to avoid these problems.

TL;DR version: functionalism (“consciousness is the sum-total of the functional properties of our brains”) sounds a lot better than it actually turns out to be in practice. In particular, functionalism makes it impossible to define ethics & suffering in a way that can mediate disagreements.

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Taking ‘brain waves’ seriously: Neuroacoustics

June 14, 2017  |  No Comments

Our research collective has been doing a lot of work touching on brain dynamics, resonance, and symmetry: see here and here (video). Increasingly, a new implicit working ontology I’m calling ‘Neuroacoustics’ is taking shape. This is a quick outline of that new ontology.

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Why we seek out pleasure: the Symmetry Theory of Homeostatic Regulation

May 26, 2017  |  No Comments

Why do we seek out pleasure- what Freud called the “pleasure principle“?

More accurately: why do we seem to seek out pleasure most of the time, but occasionally seem indifferent to it or even averse to it, e.g. in conditions such as anhedonia & depression?

My answer in a nutshell:

  1. Our brain networks are calibrated to the environment such that their symmetry gradients are tied to survival requirements. This is the core algorithm by which our brains regulate homeostasis. (Argued below)
  2. Symmetry in the mathematical representation of phenomenology corresponds to pleasure. (Argued in Principia Qualia)
  3. In combination, then, pleasure-seeking is what it feels like when our brain follows its core (ancestral/default) algorithm for maintaining homeostasis.

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Symmetry Theory of Valence “Explain Like I’m 5” edition

April 15, 2017  |  No Comments

When someone on Reddit says “ELI5”, it means “I’m having a hard time understanding this, could you explain it to me like I’m 5 years old?”

Here’s my attempt at an “ELI5” for the Symmetry Theory of Valence (Part II of Principia Qualia).


We can think of conscious experiences as represented by a special kind of mathematical shape. The feeling of snowboarding down a familiar mountain early in the morning with the air smelling of pine trees is one shape; the feeling of waking up to your new kitten jumping on your chest and digging her claws into your blankets is another shape. There are as many shapes as there are possible experiences. 

Now, the interesting part: if we try to sort experiences by how good they feel, is there a pattern to which shapes represent more pleasant experiences? I think there is, and I think this depends on the symmetry of the shape.

There’s a lot of evidence for this, and if this is true, it’s super-important! It could lead to way better painkillers, actual cures for things like Depression, and it would also give us a starting point for turning consciousness research into a real science (just like how alchemy turned into chemistry). Basically, it would totally change the world.

But first thing’s first: we need to figure out if it’s true or not.