The electron is on that scale still point like. — Haglund
The muon g2 result is explained by considering the muon a triplet of three massless Weyl particles. Each with charge -1/3. — Haglund
Don't know what you mean by electrons mixing with anti-positrons. — Haglund
The non broken gauge state has never been observed. It's a fantasy to fit the facts, like the value of the VEV, of which the origin is unknown, which is because it's just posited on purpose. — Haglund
And it explains muon g2. — Haglund
Everyone fears to say they don't believe in the standard. Their careers... — Haglund
I think it's pretty obvious that the basis particles are not basic at all. I asked the question about preons on several physics forums and even a philosophy part of a forum. — Haglund
the idea of physical necessity such that given exactly the same causal conditions, exactly the same result must always reliably follow, no matter how well attested we might think it to be by science, does not equate to logical necessity. — Janus
If such a physical necessity does rule, which is questionable given quantum indeterminacy, then it would follow logically that given exactly the same causal conditions, then exactly the same effects must follow. — Janus
Apokrisis is claiming that flat and curved are two limits, so that all real shapes are somewhere between, being to some degree flat, and to some degree curved. — Metaphysician Undercover
I think I see what you're saying, but that seems like an odd use of the term "a priori." — T Clark
Babies have to build their own worlds. — T Clark
My preference would be that we focus on the general question of what can we know without empirical knowledge rather than spending all our time on arguing the definitions of particular words. — T Clark
There's method to the madness. — Metaphysician Undercover
We just need to know the proper techniques of application, to apply straight measurement principles to a curved world, and how to compensate if a real world measurement instrument, turns out to be not as straight as it was thought to be. — Metaphysician Undercover
I'll dig as deep as necessary, until you recognize your mistakes. And from my experience, that will be very deep. — Metaphysician Undercover
And if indeed physical causation and logical necessity operate for the most part in separate domains then this is an argument against neural reductionism. After all, neural reductionists, of whom there are always plenty on this forum, will always claim that thinking is reducible to or caused by the brain, as if this is a strong argument for physicalism. But if logical necessity is separable from physical causation, then this claim can't be maintained. — Wayfarer
I'd measure in the same way that curvature is normally measured, classically, relative to a central point. — Metaphysician Undercover
A flat thing has zero curvature. And anything which is not flat has some degree of curvature. — Metaphysician Undercover
So all degrees are degrees of curvature, and flatness has no degrees, flat is zero degrees of curvature — Metaphysician Undercover
Is your appeal to authority supposed to impress me? — Metaphysician Undercover
Can you justify your claim that space is the type of thing which can be both curved and not curved at the same time? Will you resolve this contradiction? — Metaphysician Undercover
This again is incoherent. A 2d surface is a flat plane. To give that plane any type of curvature requires a third dimension. — Metaphysician Undercover
The Gaussian radius of curvature is the reciprocal of Κ. For example, a sphere of radius r has Gaussian curvature 1/r2 everywhere, and a flat plane and a cylinder have Gaussian curvature zero everywhere. The Gaussian curvature can also be negative, as in the case of a hyperboloid or the inside of a torus.
Gaussian curvature is an intrinsic measure of curvature, depending only on distances that are measured on the surface, not on the way it is isometrically embedded in Euclidean space.
https://en.wikipedia.org/wiki/Gaussian_curvature
There's no such thing as parallel lines if space is curved. — Metaphysician Undercover
So your reference, parallel lines, has no place here in a curved space. — Metaphysician Undercover
And your supposed concrete differences are just a product of contradictory premises. — Metaphysician Undercover
I suggest that you look at the differences you allude to, as the difference between internal and external, but the boundary between the two cannot be a straight line. — Metaphysician Undercover
Right, but "positive" and "negative" curvature is an arbitrary convention of measurement, — Metaphysician Undercover
Right, so to actually be at that limit, as in having zero curvature, would be contradictory to having any degree of curvature at all. — Metaphysician Undercover
Right, and to have zero curvature is to have no curvature at all, which is a direct contradiction of having curvature, being curved. — Metaphysician Undercover
And my point was, that the numbering system, by which the degrees are measured, is completely arbitrary. — Metaphysician Undercover
the fact that I can interpret the words incorrectly, is clear evidence — Metaphysician Undercover
I don't take anything seriously — Haglund
Of course they are bound. To copy heaven and life in it, they had to come up with and create particles and space in such a way that if the were let free all god creatures in heaven showed up in the universe. — Haglund
However, to say that space is both flat and curved is contradictory. — Metaphysician Undercover
Or do you know a way to distinguish between some space which is flat, and some space which is curved? — Metaphysician Undercover
Cosmic microwave background (CMB) researchers using data from the Wilkinson Microwave Anisotropy Probe (WMAP) have measured the angles of the longest triangle you can imagine. One corner is on Earth, and the other two are so far away that light has traveled about 13.3 billion years to reach us. Scientists found the angles of this triangle add up to 180°, to within small measurement uncertainties.
https://www.astronomy.com/magazine/ask-astro/2006/10/what-is-meant-by-the-term-flat-universe-how-is-this-flatness-supported-by-measurements-of-the-cosmic-microwave-background
This is inconsistent with language as we know it. — Metaphysician Undercover
So the problems with Pattee's proposal are numerous. — Metaphysician Undercover
It doesn't fail to account. — Haglund
SU(3) accounts for the strong force. It's the question if S(2)×U(1) accounts for an electroweak force. But apart from this, where did the interacting particles that made us invent these symmetries come from? — Haglund
That doesn't explain the very existence of particles, spacetime, or the invariances in them. — Haglund
Pattee says there’s no need for an ‘ontological dualism’. — Wayfarer
They needed to create the right stuff. Particles and space to interact in. Can this stuff, evolving into intelligent life across the universe, create itself? — Haglund
Doesn't Gödel's incompleteness theorem apply here to the laws of physics, rendering it impossible to explain the laws by making use of the laws? — Haglund
That's the whole point of the closure. Eternal intelligence need not be created. Only the non-intelligent stuff of the universe. — Haglund
:chin: — Wayfarer
There is a real conceptual roadblock here. In our normal everyday use of languages the very concept of a "physics of symbols" is completely foreign. We have come to think of symbol systems as having no relation to physical laws. This apparent independence of symbols and physical laws is a characteristic of all highly evolved languages, whether natural or formal. They have evolved so far from the origin of life and the genetic symbol systems that the practice and study of semiotics does not appear to have any necessary relation whatsoever to physical laws.
As Hoffmeyer and Emmeche (1991) emphasize, it is generally accepted that, "No natural law restricts the possibility-space of a written (or spoken) text.," or in Kull's (1998) words: "Semiotic interactions do not take place of physical necessity." Adding to this illusion of strict autonomy of symbolic expression is the modern acceptance of abstract symbols in science as the "hard core of objectivity" mentioned by Weyl. This isolation of symbols is what Rosen (1987) has called a "syntacticalization" of our models of the world, and also an example of what Emmeche (1994) has described as a cultural trend of "postmodern science" in which material forms have undergone a "derealization".
Another excellent example is our most popular artificial assembly of non-integrable constraints, the programmable computer. A memory-stored programmable computer is an extreme case of total symbolic control by explicit non-integrable hardware (reading, writing, and switching constraints) such that its computational trajectory determined by the program is unambiguous, and at the same time independent of physical laws (except laws maintaining the forces of normal structural constraints that do not enter the dynamics, a non-specific energy potential to drive the computer from one constrained state to another, and a thermal sink).
For the user, the computer function can be operationally described as a physics-free machine, or alternatively as a symbolically controlled, rule-based (syntactic) machine. Its behavior is usually interpreted as manipulating meaningful symbols, but that is another issue. The computer is a prime example of how the apparently physics-free function or manipulation of memory-based discrete symbol systems can easily give the illusion of strict isolation from physical dynamics.
This illusion of isolation of symbols from matter can also arise from the apparent arbitrariness of the epistemic cut. It is the essential function of a symbol to "stand for" something - its referent - that is, by definition, on the other side of the cut. This necessary distinction that appears to isolate symbol systems from the physical laws governing matter and energy allows us to imagine geometric and mathematical structures, as well as physical structures and even life itself, as abstract relations and Platonic forms. I believe, this is the conceptual basis of Cartesian mind-matter dualism.
This apparent isolation of symbolic expression from physics is born of an epistemic necessity, but ontologically it is still an illusion. In other words, making a clear distinction is not the same as isolation from all relations. We clearly separate the genotype from the phenotype, but we certainly do not think of them as isolated or independent of each other. These necessary non-integrable equations of constraint that bridge the epistemic cut and thereby allow for memory, measurement, and control are on the same formal footing as the physical equations of motion. They are called non-integrable precisely because they cannot be solved or integrated independently of the law-based dynamics.
Consequently, the idea that we could usefully study life without regard to the natural physical requirements that allow effective symbolic control is to miss the essential problem of life: how symbolic structures control dynamics.
Is it not plausible that life was first distinguished from non-living matter, not by some modification of physics, some intricate nonlinear dynamics, or some universal laws of complexity, but by local and unique heteropolymer constraints that exhibit detailed behavior unlike the behavior of any other known forms of matter in the universe?
I can't see that in what I've been reading of him. — Wayfarer
Pattee, H.H.. [2001]. "The Physics of Symbols: Bridging the Epistemic Cut". Biosystems. Vol. 60
In more common terminology, this type of constraint is a structure that we say controls a dynamics. To control a dynamical systems implies that there are control variables that are separate from the dynamical system variables, yet they must be described in conjunction with the dynamical variables. These control variables must provide additional degrees of freedom or flexibility for the system dynamics. At the same time, typical control systems do not remove degrees of freedom from the dynamical system, although they alter the rates or ranges of system variables. Many artificial machines depend on such control constraints in the form of linkages, escapements, switches and governors. In living systems the enzymes and other allosteric macromolecules perform such control functions. The characteristic property of all these non-holonomic structures is that they cannot be usefully separated from the dynamical system they control. They are essentially nonlinear in the sense that neither the dynamics nor the control constraints can be treated separately.
This type of constraint, that I prefer to call non-integrable, solves two problems. First, it answers Lucretius' question. These flexible constraints literally cause "atoms to swerve and originate new movement" within the descriptive framework of an otherwise deterministic dynamics (this is still a long way from free will). They also account for the reading of a quiescent, rate-independent memory so as to control a rate-dependent dynamics, thereby bridging the epistemic cut between the controller and the controlled. Since law-based dynamics are based on energy, in addition to non-integrable memory reading, memory storage requires alternative states of the same energy (energy degeneracy). These flexible, allosteric, or configuration-changing structures are not integrable because their motions are not fully determined until they couple an explicit memory structure with rate-dependent laws (removal of degeneracy).
The crucial condition here is that the constraint acts on the dynamic trajectories without removing alternative configurations. Thus, the number of coordinates necessary to specify the configuration of the constrained system is always greater than the number of dynamic degrees of freedom, leaving some configurational alternatives available to "read" memory structures. This in turn requires that the forces of constraint are not all rigid, i.e., there must be some degeneracy to allow flexibility. Thus, the internal forces and shapes of non-integrable structures must change in time partly because of the memory structures and partly as a result of the dynamics they control. In other words, the equations of the constraint cannot be solved separately because they are on the same formal footing as the laws themselves, and the orbits of the system depend irreducibly on both (Whittaker, 1944; Sommerfeld, 1956; Goldstein, 1953; Neimark and Fufaev, 1972).
What is historically amazing is that this common type of constraint was not formally recognized by physicists until the end of the last century (Hertz, 1894). Such structures occur at many levels. They bridge all epistemic cuts between the controller and the controlled, the classifier and the classified, the observer and the observed. There are innumerable types of non-integrable constraints found in all mechanical devices in the forms of latches, and escapements, in electrical devices in the form of gates and switches, and in many biological allosteric macromolecules like enzymes, membrane channel proteins, and ciliary and muscle proteins. They function as the coding and decoding structures in all symbol manipulating systems.
https://homes.luddy.indiana.edu/rocha/publications/pattee/pattee.html
