Category: Atheism

Simulator Superputz

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The simulation hypothesis is perhaps a bit more interesting than how to add clusters of neural network nodes to do a simple reference resolution task, but it is also less testable. This is the nature of big questions since they would otherwise have been resolved by now. Nevertheless, some theory and experimental analysis has been undertaken for the question of whether or not we are living in a simulation, all based on an assumption that the strangeness of quantum and relativistic realities might be a result of limited computing power in the grand simulator machine. For instance, in a virtual reality game, only the walls that you, as a player, can see need to be calculated and rendered. The other walls that are out of sight exist only as a virtual map in the computer’s memory or persisted to longer-term storage. Likewise, the behavior of virtual microscopic phenomena need not be calculated insofar as the macroscopic results can be rendered, like the fire patterns in a virtual torch.

So one way of explaining physics conundrums like delayed choice quantum erasers, Bell’s inequality, or ER = EPR might be to claim that these sorts of phenomena are the results of a low-fidelity simulation necessitated by the limits of the simulator computer. I think the likelihood that this is true is low, however, because we can imagine that there exists an infinitely large cosmos that merely includes our universe simulation as a mote within it. Low-fidelity simulation constraints might give experimental guidance, but the results could also be supported by just living with the indeterminacy and non-locality as fundamental features of our universe.

It’s worth considering, however, what we should think about the nature of the simulator given this potentially devious (and poorly coded) little Matrix that we find ourselves trapped in?… Read the rest

Bright Sarcasm in the Classroom

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When a Pew research poll discovered a shocking divide between self-identifying Republicans/GOP-leaning Independents and their Democratic Party opposites on the question of the value of higher education, the commentariat went apeshit. Here’s a brief rundown of sources, left, center, and right, and what they decided are the key issues:

  • National Review: Higher education has eroded the Western canon and turned into a devious plot to rob our children of good thinking, spiked with avocado toast.
  • Paul Krugman at New York Times: Conservative tribal identification leads to opposition to climate change science or evolution, and further towards a “grim” anti-intellectualism.
  • New Republic: There is no evidence that college kid’s political views are changed by higher education and, also, that conservative-minded professors aren’t much maltreated on campus either, so the conservative complaints are just overblown anti-liberal hype that, they point out, has some very negative consequences.

I would make a slightly more radical claim than Krugman, for instance, and one that is pointedly opposed to Simonson at National Review. In higher education we see not just a dedication to science but an active program of criticizing and deconstructing ideas like the Western canon as central to higher thought. In history, great man theories have been broken down into smart and salient compartments that explore the many ways in which groups and individuals, genders and ideas, all were part of fashioning the present. These changes, largely late 20th century academic inventions, have broken up the monopolies on how concepts of law, order, governance, and the worth of people were once formulated. This must be anti-conservative in the pure sense that there is little to be conserved from older ideas, except as objects of critique.… Read the rest

Traitorous Reason, Facts, and Analysis

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dinoObama’s post-election press conference was notable for its continued demonstration of adult discourse and values. Especially notable:

This office is bigger than any one person and that’s why ensuring a smooth transition is so important. It’s not something that the constitution explicitly requires but it is one of those norms that are vital to a functioning democracy, similar to norms of civility and tolerance and a commitment to reason and facts and analysis.

But ideology in American politics (and elsewhere) has the traitorous habit of undermining every one of those norms. It always begins with undermining the facts in pursuit of manipulation. Just before the election, the wizardly Aron Ra took to YouTube to review VP-elect Mike Pence’s bizarre grandstanding in Congress in 2002:

And just today, Trump lashed out at the cast of Hamilton for lecturing Mike Pence on his anti-LGBTQ stands, also related to ideology and belief, at the end of a show.

Astonishing as this seems, we live in an imperfect world being drawn very slowly away from tribal and xenophobic tendencies, and in fits and starts. My wife received a copy of letter from now-deceased family that contained an editorial from the Shreveport Journal in the 1960s that (with its embedded The Worker editorial review) simultaneously attacked segregationist violence, the rhetoric of Alabama governor George Wallace, claimed that communists were influencing John F. Kennedy and the civil rights movement, demanded the jailing of communists, and suggested the federal government should take over Alabama:

editorial-shreveport-60s-m

The accompanying letter was also concerned over the fate of children raised as Unitarians, amazingly enough, and how they could possibly be moral people. It then concluded with a recommendation to vote for Goldwater.… Read the rest

Quantum Field Is-Oughts

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teleologySean Carroll’s Oxford lecture on Poetic Naturalism is worth watching (below). In many ways it just reiterates several common themes. First, it reinforces the is-ought barrier between values and observations about the natural world. It does so with particular depth, though, by identifying how coarse-grained theories at different levels of explanation can be equally compatible with quantum field theory. Second, and related, he shows how entropy is an emergent property of atomic theory and the interactions of quantum fields (that we think of as particles much of the time) and, importantly, that we can project the same notion of boundary conditions that result in entropy into the future resulting in a kind of effective teleology. That is, there can be some boundary conditions for the evolution of large-scale particle systems that form into configurations that we can label purposeful or purposeful-like. I still like the term “teleonomy” to describe this alternative notion, but the language largely doesn’t matter except as an educational and distinguishing tool against the semantic embeddings of old scholastic monks.

Finally, the poetry aspect resolves in value theories of the world. Many are compatible with descriptive theories, and our resolution of them is through opinion, reason, communications, and, yes, violence and war. There is no monopoly of policy theories, religious claims, or idealizations that hold sway. Instead we have interests and collective movements, and the above, all working together to define our moral frontiers.

 … Read the rest

Bayesianism and Properly Basic Belief

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Kircher-Diagram_of_the_names_of_GodXu and Tenebaum, in Word Learning as Bayesian Inference (Psychological Review, 2007), develop a very simple Bayesian model of how children (and even adults) build semantic associations based on accumulated evidence. In short, they find contrastive elimination approaches as well as connectionist methods unable to explain the patterns that are observed. Specifically, the most salient problem with these other methods is that they lack the rapid transition that is seen when three exemplars are presented for a class of objects associated with a word versus one exemplar. Adults and kids (the former even more so) just get word meanings faster than those other models can easily show. Moreover, a space of contending hypotheses that are weighted according to their Bayesian statistics, provides an escape from the all-or-nothing of hypothesis elimination and some of the “soft” commitment properties that connectionist models provide.

The mathematical trick for the rapid transition is rather interesting. They formulate a “size principle” that weights the likelihood of a given hypothesis (this object is most similar to a “feb,” for instance, rather than the many other object sets that are available) according to a scaling that is exponential in the number of exposures. Hence the rapid transition:

Hypotheses with smaller extensions assign greater probability than do larger hypotheses to the same data, and they assign exponentially greater probability as the number of consistent examples increases.

It should be noted that they don’t claim that the psychological or brain machinery implements exactly this algorithm. As is usual in these matters, it is instead likely that whatever machinery is involved, it simply has at least these properties. It may very well be that connectionist architectures can do the same but that existing approaches to connectionism simply don’t do it quite the right way.… Read the rest

Lucifer on the Beach

Mark Davis1 Comment

glowwormsI picked up a whitebait pizza while stopped along the West Coast of New Zealand tonight. Whitebait are tiny little swarming immature fish that can be scooped out of estuarial river flows using big-mouthed nets. They run, they dart, and it is illegal to change river exit points to try to channel them for capture. Hence, whitebait is semi-precious, commanding NZD70-130/kg, which explains why there was a size limit on my pizza: only the small one was available.

By the time I was finished the sky had aged from cinereal to iron in a satire of the vivid, watch-me colors of CNN International flashing Donald Trump’s linguistic indirection across the television. I crept out, setting my headlamp to red LEDs designed to minimally interfere with night vision. Just up away from the coast, hidden in the impossible tangle of cold rainforest, there was a glow worm dell. A few tourists conjured with flashlights facing the ground to avoid upsetting the tiny arachnocampa luminosa that clung to the walls inside the dark garden. They were like faint stars composed into irrelevant constellations, with only the human mind to blame for any observed patterns.

And the light, what light, like white-light LEDs recently invented, but a light that doesn’t flicker or change, and is steady under the calmest observation. Driven by luciferin and luciferase, these tiny creatures lure a few scant light-seeking creatures to their doom and as food for absorption until they emerge to mate, briefly, lay eggs, and then die.

Lucifer again, named properly from the Latin as the light bringer, the chemical basis for bioluminescence was largely isolated in the middle of the 20th Century. Yet there is this biblical stigma hanging over the term—one that really makes no sense at all.… Read the rest

Free Will and Thermodynamic Warts

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Free WillyThe Stone at New York Times is a great resource for insights into both contemporary and rather ancient discussions in philosophy. Here’s William Irvin at King’s College discoursing on free will and moral decision-making. The central problem is one that we all discussed in high school: if our atomistic world is deterministic in that there is a chain of causation from one event to another (contingent in the last post), and therefore even our mental processes must be caused, then there is no free will in the expected sense (“libertarian free will” in the literature). This can be overcome by the simplest fix of proposing a non-material soul that somehow interacts with the material being and is inherently non-deterministic. This results in a dualism of matter and mind that doesn’t seem justifiable by any empirical results. For instance, we know that decision-making does appear to have a neuropsychological basis because we know about the effects of lesioning brains, neurotransmitters, and even how smells can influence decisions. Irving also claims that the realization of the potential loss of free will leaves us awash in some sense of hopelessness at the simultaneous loss of the metaphysical reality of an objective moral system. Without free will we seem off the hook for our decisions.

Compatibilists will disagree, and might even cite quantum indeterminacy as a rescue donut for pulling some notion of free will up out of the deep ocean of Irving’s despair. But the fix is perhaps even easier than that. Even though we might recognize that there are chains of causation at a microscopic scale, the macroscopic combinations of these events—even without quantum indeterminacy—becomes only predictable along broad contours of probabilistic outcomes.… Read the rest

Rationality and the Intelligibility of Philosophy

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6a00d83542d51e69e20133f5650edd970b-800wiThere is a pervasive meme in the physics community that holds as follows: there are many physical phenomena that don’t correspond in any easy way to our ordinary experiences of life on earth. We have wave-particle duality wherein things behave like waves sometimes and particles other times. We have simultaneous entanglement of physically distant things. We have quantum indeterminacy and the emergence of stuff out of nothing. The tiny world looks like some kind of strange hologram with bits connected together by virtual strings. We have a universe that began out of nothing and that begat time itself. It is, in this framework, worthwhile to recognize that our every day experiences are not necessarily useful (and are often confounding) when trying to understand the deep new worlds of quantum and relativistic physics.

And so it is worthwhile to ask whether many of the “rational” queries that have been made down through time have any intelligible meaning given our modern understanding of the cosmos. For instance, if we were to state the premise “all things are either contingent or necessary” that underlies a poor form of the Kalam Cosmological Argument, we can immediately question the premise itself. And a failed premise leads to a failed syllogism. Maybe the entanglement of different things is piece-part of the entanglement of large-scale space time, and that the insights we have so far are merely shadows of the real processes acting behind the scenes? Who knows what happened before the Big Bang?

In other words, do the manipulations of logic and the assumptions built into the terms lead us to empty and destructive conclusions? There is no reason not to suspect that and therefore the bits of rationality that don’t derive from empirical results are immediately suspect.… Read the rest

Non-Cognitivist Trajectories in Moral Subjectivism

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imageWhen I say that “greed is not good” the everyday mind creates a series of images and references, from Gordon Gekko’s inverse proposition to general feelings about inequality and our complex motivations as people. There is a network of feelings and, perhaps, some facts that might be recalled or searched for to justify the position. As a moral claim, though, it might most easily be considered connotative rather than cognitive in that it suggests a collection of secondary emotional expressions and networks of ideas that support or deny it.

I mention this (and the theories that are consonant with this kind of reasoning are called non-cognitivist and, variously, emotive and expressive), because there is a very real tendency to reduce moral ideas to objective versus subjective, especially in atheist-theist debates. I recently watched one such debate between Matt Dillahunty and an orthodox priest where the standard litany revolved around claims about objectivity versus subjectivity of truth. Objectivity of truth is often portrayed as something like, “without God there is no basis for morality. God provides moral absolutes. Therefore atheists are immoral.” The atheists inevitably reply that the scriptural God is a horrific demon who slaughters His creation and condones slavery and other ideas that are morally repugnant to the modern mind. And then the religious descend into what might be called “advanced apologetics” that try to diminish, contextualize, or dismiss such objections.

But we are fairly certain regardless of the tradition that there are inevitable nuances to any kind of moral structure. Thou shalt not kill gets revised to thou shalt not murder. So we have to parse manslaughter in pursuit of a greater good against any rules-based approach to such a simplistic commandment.… Read the rest

A Critique of Pure Randomness

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Random MemeThe notion of randomness brings about many interesting considerations. For statisticians, randomness is a series of events with chances that are governed by a distribution function. In everyday parlance, equally-likely means random, while an even more common semantics is based on both how unlikely and how unmotivated an event might be (“That was soooo random!”) In physics, there are only certain physical phenomena that can be said to be truly random, including the probability of a given nucleus decomposing into other nuclei via fission. The exact position of a quantum thingy is equally random when it’s momentum is nailed down, and vice-versa. Vacuums have a certain chance of spontaneously creating matter, too, and that chance appears to be perfectly random. In algorithmic information theory, a random sequence of bits is a sequence that can’t be represented by a smaller descriptive algorithm–it is incompressible. Strangely enough, we simulate random number generators using a compact algorithm that has a complicated series of steps that lead to an almost impossible to follow trajectory through a deterministic space of possibilities; it’s acceptible to be random enough that the algorithm parameters can’t be easily reverse engineered and the next “random” number guessed.

One area where we often speak of randomness is in biological evolution. Random mutations lead to change and to deleterious effects like dead-end evolutionary experiments. Or so we hypothesized. The exact mechanism of the transmission of inheritance and of mutations were unknown to Darwin, but soon in the evolutionary synthesis notions like random genetic drift and the role of ionizing radiation and other external factors became exciting candidates for the explanation of the variation required for evolution to function. Amusingly, arguing largely from a stance that might be called a fallacy of incredulity, creationists have often seized on a logical disconnect they perceive between the appearance of purpose both in our lives and in the mechanisms of biological existence, and the assumption of underlying randomness and non-directedness as evidence for the paucity of arguments from randomness.… Read the rest