Category: Science

Begging the Pseudo-Question

Mark Davis2 Comments

 

I recently got involved in an “audiophile” online discussion thread replete with devious trolling, commenter bans, incivility—the works. I do this from time to time because raucous argumentation forces one to think in tactical and strategic ways that are not the norm in everyday life. I also learn new things. In this case, I went on several quests, hunting down papers on the ability of Chinese language speakers to disambiguate tones in Gaussian noise, how distortion artifacts impact our perception of spatialization in binaural audio presentations, and even Rayleigh wave detection by sand scorpions (I actually worked on a simulator for that as a late undergrad). One of the key disagreements in the thread was over the notion of “science.” There were several perspectives on this, with the first one being that science requires experimentation and therefore using scientifically-derived tools for investigating the performance of audio equipment does not amount to science. This is obviously a shrugger and a distraction. The other primary perspective is always that science is in constant revision and there may be new insights that prove this-or-that subtle hearing capability since human hearing is just sooooo amazing. We are sooooo amazing.

There’s a bit of a Two Cultures-like tension in this universe of audio equipment aficionados: while engineering and science brings them audio gear, they want it to be poetic and ineffable and the work of mastery based in genius rather than Fast Fourier Transforms. Graphs are boring. Listening is beautiful.

Part of the reason for the disagreement is clearly that we just don’t have shared meanings about concepts like science. We circle around them and try to triangulate using metaphors, analogies, and explore the logical consequences of limits and extensions to their meaning.… Read the rest

The Rubbery Road from Original Position to Metaphysical Naturalism

Mark Davis1 Comment

From complaints about student protests over Israel in Gaza, to the morality of new House Speaker Johnson, and even to the reality and consequences of economic inequality, there is a dynamic conversation in the media over what is morally right and, importantly, why it should be considered right. It’s perfectly normal for those discussions and considered monologues to present ideas, cases, and weigh the consequences to American life, power, and the well-being of people around the world. It also demonstrates the fact that ideas like divine command theory become irrelevant for most if not all of these discussions since they still require secular analysis and resolution. Contributions from the Abrahamic faiths (and similarly from Hindu nationalism) are largely objectionable moral ideas (“The Chosen People,” jihad, anti-woman, etc.) that are inherently preferential and exclusionary.

Indeed, this public dialogue perhaps best shows how modern people build ethical systems. It looks mostly like Rawl’s concept of “reflective equilibrium” with dashes of utilitarianism and occasional influences from religious tradition and sentiment. And reflective equilibrium has few foundational ideas beyond a basic commitment to fairness as justice using the “original position” as its starting point. That is, if we had to create a society with no advance knowledge about what our role and position might be within it (a veil of ignorance), the best for us would be to create an equal, fair, and just society.

So ethics is cognitively rubbery, with changing attachments and valences as we process options into a coherent whole. We might justify civilian deaths for a greater good when we have few options, imprecise weapons, and existential fear (say, the atom bomb in World War II).… Read the rest

Oh, the Humanities!

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I often laugh out loud at Ross Douthat’s New York Times columns that worry over strange spiritualisms taking over America, or try to unravel cultural knots that he always suggests might best be resolved by Catholicism (or even one of those lesser faiths), but I did enjoy his take today on the perishing of the humanities in America’s universities and colleges. I routinely read into the 18th and 19th centuries as an exploration of how language was once used. I read analytically, that is. Plots are picked apart. Characterization is considered. Clausal embedding is almost always more ornate than contemporary writing where such elaborations are pretentious or, at least, overwrought. I also (try to) read original versions of Balzac or Flaubert as an exercise in improving my French. What is less interesting to me are the class conflicts, racism, and gender roles from those bygone days. People are rotten enough today; I hardly need a reminder that we were always rotten and had reinforcing institutions and traditions overlaying that malaise.

But is there a threat to a decline in the participation in the humanities and a shift to STEM fields among university students? The argument is that it impacts our understanding of history and the drivers that got us here today. Perhaps it also diminishes our knowledge of logic and reason when philosophy is subtracted from the curriculum. Or just that the student never learns to articulate complex ideas and arguments.

An alternative to Douthat’s calls for monastic recitation and memorization as a grounding for the transmission of ideas is to make it more relevant to the STEM fields that have money and mindshare. In other words, inveigle the humanities into STEM; don’t fight, infiltrate.… Read the rest

Follow the Paths

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There is a little corner of philosophical inquiry that asks whether knowledge is justified based on all our other knowledge. This epistemological foundationalism rests on the concept that if we keep finding justifications for things we can literally get to the bottom of it all. So, for instance, if we ask why we think there is a planet called Earth, we can find reasons for that belief that go beyond just “’cause I know!” like “I sense the ground beneath my feet” and “I’ve learned empirically-verified facts about the planet during my education that have been validated by space missions.” Then, in turn, we need to justify the idea that empiricism is a valid way of attaining knowledge with something like, “It’s shown to be reliable over time.” This idea of reliability is certainly changing and variable, however, since scientific insights and theories have varied, depending on the domain in question and timeframe. And why should we in fact value our senses as being reliable (or mostly reliable) given what we know about hallucinations, apophenia, and optical illusions?

There is also a curious argument in philosophy that parallels this skepticism about the reliability of our perceptions, reason, and the “warrants” for our beliefs called the Evolutionary Argument Against Naturalism (EAAN). I’ve previously discussed some aspects of EAAN, but it is, amazingly, still discussed in academic circles. In a nutshell it asserts that our reliable reasoning can’t be evolved because evolution does not reliably deliver good, truthful ways of thinking about the world.

While it may seem obvious that the evolutionary algorithm does not deliver or guarantee completely reliable facilities for discerning true things from false things, the notion of epistemological pragmatism is a direct parallel to evolutionary search (as Fitelson and Sober hint).… Read the rest

Entanglements: Collected Short Works

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Now available in Kindle, softcover, and hardcover versions, Entanglements assembles a decade of short works by author, scientist, entrepreneur, and inventor Mark William Davis.

The fiction includes an intimate experimental triptych on the evolution of sexual identities. A genre-defying poetic meditation on creativity and environmental holocaust competes with conventional science fiction about quantum consciousness and virtual worlds. A postmodern interrogation of the intersection of storytelling and film rounds out the collected works as a counterpoint to an introductory dive into the ethics of altruism.

The nonfiction is divided into topics ranging from literary theory to philosophical concerns of religion, science, and artificial intelligence. Legal theories are magnified to examine the meaning of liberty and autonomy. A qualitative mathematics of free will is developed over the course of two essays and contextualized as part of the algorithm of evolution. What meaning really amounts to is always a central concern, whether discussing politics, culture, or ideas.

The works show the author’s own evolution in his thinking of our entanglement with reality as driven by underlying metaphors that transect science, reason, and society. For Davis, metaphors and the constellations of words that help frame them are the raw materials of thought, and their evolution and refinement is the central narrative of our growth as individuals in a webwork of societies and systems.

Entanglements is for readers who are in love with ideas and the networks of language that support and enervate them. It is a metalinguistic swim along a polychromatic reef of thought where fiction and nonfictional analysis coexist like coral and fish in a greater ecosystem.

Mark William Davis is the author of three dozen scientific papers and patents in cognitive science, search, machine translation, and even the structure of art.… Read the rest

Wordle and the Hard Problem of Philosophy

Mark Davis2 Comments

I occasionally do Wordles at the New York Times. If you are not familiar, the game is very simple. You have six chances to guess a five-letter word. When you make a guess, letters that are in the correct position turn green. Letters that are in the word but in the wrong position turn yellow. The mental process for solving them is best optimized by choosing a word initially that has high-frequency English letters, like “notes,” and then proceeding from there. At some point in the guessing process, one is confronted with anchoring known letters and trying to remember words that might fit the sequence. There is a handy virtual keyboard displayed below the word matrix that shows you the letters in black, yellow, green, and gray that you have tried, that are required, that are fit to position, and that remain untested, respectively. After a bit, you start to apply little algorithms and exclusionary rules to the process: What if I anchor an S at the beginning? There are no five-letter words that end in “yi” in English, etc. There is a feeling of working through these mental strategies and even a feeling of green and yellow as signposts along the way.

I decided this morning to write the simplest one-line Wordle helper I could and solved the puzzle in two guesses:

Sorry for the spoiler if you haven’t gotten to it yet! Here’s what I needed to do the job: a five letter word list for English and a word frequency list for English. I could have derived the first from the second but found the first first, here. The second required I log into Kaggle to get a good CSV searchable list.… Read the rest

Time at Work

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Time is a strange concept according to several strains of science and related philosophical concerns. We have this everyday medium-macroscopic set of ideas about how there is an undiscovered country of the future, a now we are experiencing, and a past that we remember or model based on accumulated historical facts. When we venture into extensions of conceptual ideas like an infinite past or sequenced events we deploy reasoning about what their properties might be by excluding contradictory compositions of properties and using other kinds of limiting semantics to constrain a mental model of those concepts.

But that isn’t the weirder stuff. The weirder stuff is the result of a collision of measurement and scientific theory.

Take, for instance, the oft-described reversibility of Newtonian physics. We have an equation for an object’s motion that can be run backward in time. But entropy in large ensembles of things in motion is not reversible because of some odd property of energy dissipation into the environment that arises because of micro-interactions. Some say this creates an “arrow of time” in the face of these reversible equations.

But this is an odd way of characterizing mathematical statements that represent the uniformity of physical interactions. The idea of “reversibility” is just a matter of a computational representation of processes that do always flow forward in time. Running t from 0 to -∞ in an equation has no real relationship to any physical phenomena. So the reversibility of mathematical forms is just an interesting fact.

We can bind up space and time, as well, which also provokes feelings of incongruity when we start to talk about gravitational effects on relative elapsed time, or relative speed effects.… Read the rest

A Learning Smorgasbord

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Compliments of a discovery by Futurism, the paper The Autodidactic Universe by a smorgasbord of contemporary science and technology thinkers caught my attention for several reasons. First was Jaron Lanier as a co-author. I knew Jaron’s dad, Ellery, when I was a researcher at NMSU’s now defunct Computing Research Laboratory. Ellery had returned to school to get his psychology PhD during retirement. In an odd coincidence, my brother had also rented a trailer next to the geodesic dome Jaron helped design and Ellery lived after my brother became emancipated in his teens. Ellery may have been his landlord, but I am not certain of that.

The paper is an odd piece of kit that I read over two days in fits and spurts with intervening power lifting interludes (I recently maxed out my Bowflex and am considering next steps!). It initially has the feel of physicists trying to reach into machine learning as if the domain specialists clearly missed something that the hardcore physical scientists have known all along. But that concern dissipated fairly quickly and the paper settled into showing isomorphisms between various physical theories and the state evolution of neural networks. OK, no big deal. Perhaps they were taken by the realization that the mathematics of tensors was a useful way to describe network matrices and gradient descent learning. They then riffed on that and looked at the broader similarities between the temporal evolution of learning and quantum field theory, approaches to quantum gravity, and cosmological ideas.

The paper, being a smorgasbord, then investigates the time evolution of graphs using a lens of graph theory. The core realization, as I gleaned it, is that there are more complex graphs (visually as well as based on the diversity of connectivity within the graph) and pointlessly uniform or empty ones.… Read the rest

One Shot, Few Shot, Radical Shot

Mark Davis1 Comment

Exunoplura is back up after a sad excursion through the challenges of hosting providers. To be blunt, they mostly suck. Between systems that just don’t work right (SSL certificate provisioning in this case) and bad to counterproductive support experiences, it’s enough to make one want to host it oneself. But hosting is mostly, as they say of war, long boring periods punctuated by moments of terror as things go frustratingly sideways. But we are back up again after two hosting provider side-trips!

Honestly, I’d like to see an AI agent effectively navigate through these technological challenges. Where even human performance is fleeting and imperfect, the notion that an AI could learn how to deal with the uncertain corners of the process strikes me as currently unthinkable. But there are some interesting recent developments worth noting and discussing in the journey towards what is named “general AI” or a framework that is as flexible as people can be, rather than narrowly tied to a specific task like visually inspecting welds or answering a few questions about weather, music, and so forth.

First, there is the work by the OpenAI folks on massive language models being tested against one-shot or few-shot learning problems. In each of these learning problems, the number of presentations of the training data cases is limited, rather than presenting huge numbers of exemplars and “fine tuning” the response of the model. What is a language model? Well, it varies across different approaches, but typically is a weighted context of words of varying length, with the weights reflecting the probabilities of those words in those contexts over a massive collection of text corpora. For the OpenAI model, GPT-3, the total number of parameters (words/contexts and their counts) is an astonishing 175 billion using 45 Tb of text to train the model.… Read the rest

The Abnormal Normal

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Another day, another COVID-19 conspiracy theory making the rounds. First there was the Chinese bioweapons idea, then the 5G radiation theory that led to tower vandalism, and now the Plandemic video. Washington Post covers the latter while complaining that tech companies are incompetently ineffectual in stopping the spread of these mind viruses that accompany the biological ones. Meanwhile, a scientist who appears in the video is reviewed and debunked in AAAS Science based on materials she provided them. I’m still interested in these “sequences” in the Pacific Ocean. I’ve spent some time in there and may need to again.

The WaPo article ends with a suggestion that we all need to be more skeptical of dumb shit, though I’m guessing that that message will probably not reach the majority of believers or propagators of Plandemic-style conspiracy thinking. So it goes with all the other magical nonsense that percolates through our ordinary lives, confined as they are to only flights of fancy and hopeful aspirations for a better world.

Broadly, though, it does appear that susceptibility to conspiracy theories correlates with certain mental traits that linger at the edge of mental illnesses. Evita March and Jordan Springer got 230 mostly undergraduate students to answer online questionnaires that polled them on mental traits of schizotypy, Machiavellianism, trait narcissism, and trait psychopathy. They also evaluated their belief in odd/magical ideas. Their paper, Belief in conspiracy theories: The predictive role of schizotypy, Machiavellianism, and primary psychopathy, shows significant correlations with belief in conspiracies. Interestingly, they suggest that the urge to manipulate others in Machiavellianism and psychopathy may, in turn, lead to an innate fear of being manipulated oneself.

Mental illness and certain psychological traits have always been a bit of an evolutionary mystery.… Read the rest