Here's what Anderson says:
...the reductionist hypothesis does not by any means imply a “constructionist” one: The ability to reduce everything to simple fundamental laws does not imply the ability to start from those laws and reconstruct the universe...
...The constructionist hypothesis breaks down when confronted with the twin difficulties of scale and complexity. The behavior of large and complex aggregates of elementary particles, it turns out, is not to be understood in terms of a simple extrapolation of the properties of a few particles. Instead, at each level of complexity entirely new properties appear, and the understanding of the new behaviors requires research which I think is as fundamental in its nature as any other... — P.W. Anderson - More is Different — T Clark
Do you think, or do you think it’s possible, to explain and predict the principles of biology from the principles of physics. Here’s a list of some of those principles— evolutionary theory, physiology, genetics, thermodynamics, and ecology. Once you’ve done that, you need to explain and predict how those principles will interact and integrate to produce biological organisms and how they historically evolve and develop as energy-processing, self-regulating systems. — T Clark
And his definition is, roughly, something's emergent if it shows up in a simulation. — Srap Tasmaner
Thanks for pointing this out. It's a very curious piece of work, that paper. Not what I was expecting. — Srap Tasmaner
That is a paradigm example of weak emergence. — Clarendon
Again, if we're giving each other advice then you need to familiarize yourself with the distinction between weak and strong emergence and to do that I suggest you read philosophers not physicists. — Clarendon
Combining objects of different weights will result in a whole that weighs more than any of its parts. The weight is said to be weakly emergent. — Clarendon
The point is more along the lines of you can't gather water in any amount, or in any configuration, and end up with wood. — Patterner
The real problem - one that I, at least, can see 'is' a problem - is that you can't get out what you don't put in. For example, you can't make something that has size by combining lots of sizeless things. That's just not going to work. The only way to make a sized thing, is to combine things of size - no size in, no size out.
Similarly then, you aren't going to be able to make a conscious object out of objects that are not already conscious (or at least disposed to be). For that would be alchemy. Call it 'strong emergence' if one wants - but that's just a label for what is in fact something coming from nothing. Thus, as our brains are made out of atoms, then either atoms have consciousness (or are disposed to) or brains simply can't have consciousness. — Clarendon
Here are some examples of beliefs that do not derive their warrant from evidential support, but may still be truth-apt — SophistiCat
All of these are falsifiable. — Philosophim
2+2=4 is unfalsifiable and true, this refutes the statement "If it is unfalsifiable, it cannot have evidential warrant for its belief." — Hallucinogen
The student tried to apply Ohm's law, voltage = current x resistance. So the voltage would be zero (the current) times infinity (the resistance). Except, looking again, that would mean that the voltage divided by zero = infinity. Which makes no sense. — frank
Prior to the 19th Century, a convergent series would have been treated as if it reaches the limit, though it would have been ok to say it's actually just approaching it. In the 19th Century, they decided that it doesn't just approach it, it actually gets there because the function is continuous. — frank
This is all from proofs by Cauchy that I don't understand. Do you understand it? — frank
↪SophistiCat
Apparently you misread what I wrote. I had in mind the commonly imagined scifi scenario, where you are traveling at close to the speed of light and all processes. including bodily processes, are slowed down such that you are aging much more slowly than those who remain on Earth.
I was attempting to point to the absurdity of thinking that the bodily processes could be slowed down while the mental processes continued at the "normal" speed, which is also to point to the absurdity of thinking that the mental processes could be independence of the bodily. It would save wasted time if people read more carefully. — Janus
Yes, I agree that dualism is unsupportable. If we were traveling at speed close to c, aging of our bodies and all its physical processes would, according to the theory, greatly slow down. If our minds were independent of, and unaffected by, physical processes, and proceeding at their "normal" rate, then our subjective experience of mental processes would, presumably, seem vastly speeded up, which seems absurd. — Janus
Evidence just means "reasons to believe a proposition is true". — Hallucinogen
There's a claim I've come across numerous times, to the effect of "If P is unfalsifiable, then it cannot be known to be true or false".
There's been a few ways I've heard/seen it worded:
"If it is unfalsifiable, it cannot have evidential warrant for its belief",
"If it’s unfalsifiable, there’s no reason to believe it."
"Something that is unfalsifiable could be true, but there's no way for us to be able to conclusively determine that",
"If it’s unfalsifiable you don’t know if it is true or false." — Hallucinogen
1) To say that S is larger than S' means that S' is a proper subset of S.
( A definition that applies to all sets, regardless of their size. ) — Magnus Anderson
This is false, since that definition applies only to finite sets. — Banno
The cost here is the rejection of succession (roughly, that for every number there is another number that is one more than it; or more accurately, that we can talk about such an infinite sequence); and consequently the rejection of the whole of Peano mathematics. No small thing. — Banno
I see what you’re getting at, and I agree that bijection strictly extends our ability to reason about size — especially once infinities are in play. In that sense it’s an enrichment, not a rival notion. — Esse Quam Videri
Venezuela was already a failed state. How much worse could it get? — frank
A lot more worse.
Civil war. Hundreds of thousands of dead. Widespread famine. Failed state with competing regime that have divided the country. Or become like Haiti with criminal gangs running the country without any much if any operating government. — ssu
What is color? On the one hand it seems obvious that it is a property of objects - roses are red, violets are blue, and so on. On the other hand, even the red of a single petal of a rose differs in different lighting conditions or when seen from different angles, and the basic physical elements that make up the rose don't have colors. So is color instead a property of a mental state, or a relation between a perceiving mind and an object? In Outside Color: Perceptual Science and the Puzzle of Color in Philosophy (MIT Press, 2015), M. Chirimuuta defends an ontology of color that aims to capture the ontology implicit in contemporary perceptual science. Chirimuuta, an assistant professor of history and philosophy of science at the University of Pittsburgh, argues for color adverbialism, in which color is a property of an action-guiding interaction between an organism with the appropriate visual system and the environment. On her view, color vision is not for perceiving colors; it provides chromatic information that helps us perceive things.
I would tentatively answer "yes", and argue that contingency means dependency on conditions. Dependency implies ordered explanatory relations. A structure of ordered explanatory relations ultimately requires an unconditioned (ungrounded) ground. — Esse Quam Videri
Though I suppose on some exceedingly remote metaphysical and unreal "ultimate" level we still are observing objects seemingly regularly repeating things, but is it really very insightful to say that as long as we will remain human that there will be room for doubt? — hwyl
Most thinking has been at least partially about math, long before numbers were discovered. Consider the calculus needed to throw a spear accurately. — noAxioms
Pretty much nobody uses binary directly. — Mijin
H'm. Did he, by any chance, suggest a better term? — Ludwig V
In modal logic, “the actual world” is a designated element of a model, usually called w₀. It is not the metaphysical world, not the planet, not the territory. — Banno
If it is possible that p is true, then this means that either p is true or p is false. So this gives us (p or ~p). But we have asserted that p is true. Therefore (p or ~p) is also true. — EricH
I agree with most of that. I can see that we need to say that the actual is possible - even if that is a bit awkward in some ways. — Ludwig V
There's something wrong with saying that the actual world is possible and something wrong with saying that it is not possible. I am trying to express that by saying that the actual world is not merely possible and that it is different from all the other possible worlds in that respect — Ludwig V
That seems to me a bit confusing, because it suggests that the actual world is merely a possible world. Surely one needs to say something to the effect that the actual world is different from all the possible worlds. — Ludwig V
Do you think we'll see a true survival show by 2035? Like deathmatches or frantic races?
The participants could be death row inmates, debtors, or the terminally ill, and the action could take place in third-world countries. The technical details aren't so important; what matters is whether modern society is ready for such a show. — Astorre
There's a fine line here. Rogues are people who break the rules and thus evoke sympathy (something like Jack Sparrow). They remain within the rules themselves. The current conversation isn't about morally black (bad) people, but about morally gray people. That is, those who live entirely outside the good/bad paradigm. The phenomenon I'm talking about has a somewhat different nature. These heroes seem bad, but they are a reflection of us—they're just like us, with everyday problems. And we no longer know whether they're bad or not, or whether we can justify them (because we're all a bit like Walter White). — Astorre
"Free will" as such doesn't have much of an ordinary use, though, outside of legal contexts. — Pierre-Normand
Anthony Kenny does a very good job in his little book "Freewill and Responsibility" of clarifying the concept in its relations to various categories of mens rea (from strict liabilities, through negligence or recklessness, to specific intent.) This yields a sort of thick compatibilist notion that goes beyond mere freedom from "external" circumstances and extends outside of legal contexts to those of warranted reactive attitudes like praise and blame. In those more ordinary contexts, the question seldom arise of one having acted "of their own free will." We rather ask more ordinary questions like, "could they have done better?" or "is their action excusable?" Something like the Kantian dictum "must implies can" finds its ordinary applications. — Pierre-Normand
Let me be clear: there are plenty of things we don't understand, or even are entirely speculative, but are perfectly valid concepts.
Free will has not even attained that level yet though. It's self inconsistent, at least in the formulations that I've seen. A reasoned choice that can't be traced to reasons. — Mijin
Is that at me? WTH? — Mijin
