40 Matching Annotations
  1. Apr 2024
    1. MDA, a theory of how game design works. MDA is a theory about the emergent nature of game play. It says when you combine game MECHANICS (shoot something, collect coins, jump over something, open a locked door, etc) the combination becomes DYNAMICS (sidescroller, boss battle, etc) which then is experienced by a player as a type of fun, or AESTHETICS (Fellowship, Challenge, Fantasy etc.

      Mechanics, dynamics and aesthetics

    2. CAMP
    1. an organisation, i.e. a set of specialised systemscoordinated to work collectively with the same end in view.

      organization<br /> : specialized systems carrying out concerted actions toward a stated goal or purpose

      Note that even if some members of the organization create statistical noise in their actions, the larger organization may still move in a useful direction

  2. Feb 2024
    1. Surprisingly, the American author who is quoted most in the OED isnot Mark Twain or Emily Dickinson or Edgar Allan Poe, but rather EdwardH. Knight, a patent lawyer and expert in mechanics who wrote the AmericanMechanical Dictionary and The Practical Dictionary of Mechanics. Knight isthe seventy-fourth-most cited author in the Dictionary, quoted morefrequently than Percy Bysshe Shelley, George Eliot or Ralph Waldo Emerson(who comes in at 116, the next-most quoted American).
  3. Dec 2023
    1. The dimension of the configuration space is the smallest number of parameters that have to be given to completely specify a configuration. The dimension of the configuration space is also called the number of degrees of freedom of the system.4

      Definition of degrees of freedom of a system

  4. Oct 2023
    1. If you look at George Ellis’s Google Scholar, it’s clear that he has gone down the deep end a while ago. What is it with these cosmologists? (Ahem, Penrose). Suddenly they discover quantum physics and it’s the solution to consciousness. Or gravity makes wavefunctions collapse.

      quote from Christoph Adami at https://twitter.com/ChristophAdami/status/1711583362647814485

      Re: George Ellis https://www.nature.com/articles/d41586-023-03061-y

      Physicists and quantum mechanics as solution to consciousness.

      See also: Physics in Mind: A Quantum View of the Brain by Werner R. Loewenstein

    1. Just bychanging something, the desire often gets fulfilled.
    2. New ideas can come along during the process, too. And a film isn’tfinished until it’s finished, so you’re always on guard. Sometimesthose happy accidents occur. They may even be the last pieces ofthe puzzle that allow it all to come together. And you feel so thankful:How in the world did this happen?
  5. Feb 2023
    1. | physics/mathematics | Classical Physics | Quantum Mechanics |<br /> |---|---|---|<br /> | State Space | fields satisfying equations of laws<br>- the state is given by a point in the space | vector in a complex vector space with a Hermitian inner product (wavefunctions) |<br /> | Observables | functions of fields<br>- usually differential equations with real-valued solutions | self-adjoint linear operators on the state space<br>- some confusion may result when operators don't commute; there are usually no simple (real-valued) numerical solutions |

    2. https://www.youtube.com/watch?v=5qGRPOzMWnA

      Watched the first 46:39 on 2023-02-02. His personal communication style is a bit off-putting, but remedied slightly by watching at 1.25 or 1.5x speed. He's broadly covering pieces directly from his text which seems much more compact and elegant. Questions from the viewers in real time is a bit muddy with respect to understanding what they're saying.

      I gave up on the video due to streaming issues.

    3. One of the problems in approaching quantum gravity is the choice for how to best represent it mathematically. Most of quantum mechanics is algebraic in nature but gravity has a geometry component which is important. (restatement)


      This is similar to the early 20th century problem of how to best represent quantum mechanics: as differential equations or using group theory/Lie algebras?

      This prompts the question: what other potential representations might also work?

      Could it be better understood/represented using Algebraic geometry or algebraic topology as perspectives?

      [handwritten notes from 2023-02-02]

    1. First, I am a big fan of Chris’ posts. He is our best historian. Second, I did not challenge his ideas but asked for clarification about some terms which I believe are of general interest. Chris is well-positioned to answer my questions. Third, statistical mechanics is more about microscopic systems that do not evolve. As we know, ideas (from concepts to theories) evolve and generally emerge from previous ideas. Emergence is the key concept here. I suggested Phenomics as a potential metaphor because it represents well the emergence of some systems (phenotypes) from pre-existing ones (genotypes).

      reply to u/New-Investigator-623 at https://www.reddit.com/r/antinet/comments/10r6uwp/comment/j6wy4mf/?utm_source=reddit&utm_medium=web2x&context=3

      Ideas, concepts, propositions, et al. in this context are just the nebulous dictionary definitions. Their roots and modern usage have so much baggage now that attempting to separate them into more technical meanings is difficult unless you've got a solid reason to do so. I certainly don't here. If you want to go down some of the rabbit hole on the differences, you might appreciate Winston Perez' work on concept modeling which he outlines with respect to innovation and creativity here: https://www.youtube.com/watch?v=gGQ-dW7yfPc.

      I debated on a more basic framing of chemistry or microbiology versus statistical mechanics or even the closely related statistical thermodynamics, but for the analogy here, I think it works even if it may scare some off as "too hard". With about 20 linear feet of books in my library dedicated to biology, physics, math, engineering with a lot of direct focus on evolutionary theory, complexity theory, and information theory I would suggest that the underlying physics of statistical mechanics and related thermodynamics is precisely what allows the conditions for systems to evolve and emerge, for this is exactly what biological (and other) systems have done. For those intrigued, perhaps Stuart Kauffman's Origins of Order (if you're technically minded) or At Home in the Universe (if you're less technically oriented) are interesting with respect to complexity and emergence. There's also an interesting similar analogy to be made between a zettelkasten system and the systems described in Peter Hoffman's book Life's Rachet. I think that if carefully circumscribed, one could define a zettelkasten to be "alive". That's a bigger thesis for another time. I was also trying to stay away from the broad idea of "atomic" and drawing attention to "atomic notes" as a concept. I'm still waiting for some bright physicist to talk about sub-atomic notes and what that might mean... I see where you're going with phenomics, but chemistry and statistical mechanics were already further afield than the intended audience who already have issues with "The Two Cultures". Getting into phenomics was just a bridge too far... not to mention, vastly more difficult to attempt to draw(!!!). 😉 Besides, I didn't want Carol Greider dropping into my DMs asking me why didn't I include telomeres or chancing an uncomfortable LAX-BWI flight and a train/cab ride into Baltimore with Peter Agre who's popped up next to me on more than one occasion.

      Honestly, I was much less satisfied with the nebulousness of "solution of life"... fortunately no one seems to be complaining about that or their inability to grapple with catalysis. 🤷🏼

    1. Instead of trying to resolve in general this problem of how macroscopic clas-sical physics behavior emerges in a measurement process, one can adopt thefollowing two principles as providing a phenomenological description of whatwill happen, and these allow one to make precise statistical predictions usingquantum theory

      To resolve the measurement problem from quantum mechanics into the classical realm, one can use the observables principle and the Born rule.

    2. Principle (The Born rule). Given an observable O and two unit-norm states|ψ1〉 and |ψ2〉 that are eigenvectors of O with distinct eigenvalues λ1 and λ2O|ψ1〉 = λ1|ψ1〉, O|ψ2〉 = λ2|ψ2〉the complex linear combination statec1|ψ1〉 + c2|ψ2〉will not have a well-defined value for the observable O. If one attempts tomeasure this observable, one will get either λ1 or λ2, with probabilities|c21||c21| + |c22|and |c22||c21| + |c22|respectively.
    3. Axiom (States). The state of a quantum mechanical system is given by a non-zero vector in a complex vector space H with Hermitian inner product 〈·, ·〉.
    4. Weyl’s insight that quantization of a classical system crucially involves un-derstanding the Lie groups that act on the classical phase space and the uni-tary representations of these groups
  6. Jan 2023
  7. Dec 2022
    1. Aleatoric music (also aleatory music or chance music; from the Latin word alea, meaning "dice") is music in which some element of the composition is left to chance, and/or some primary element of a composed work's realization is left to the determination of its performer(s). The term is most often associated with procedures in which the chance element involves a relatively limited number of possibilities.
    1. What greater education and skills allow an individual to do is to move fur-ther up in the overall queue of people looking to find a well-paying and re-warding job. However, because of the limited number of such jobs, only a setamount of people will be able to land such jobs. Consequently, one’s positionin the queue can change as a result of human capital, but the same amount ofpeople will still be stuck at the end of the line if the overall opportunities re-main the same.

      There is a direct analogy to statistical mechanics and thermodynamics to be drawn here.

    2. One of the clear signs that the bottleneck to low-income adults working moreresults from their lack of opportunities is provided by looking at their hours of workover the business cycle. When the economy is strong and jobs are plentiful, low-incomeworkers are more likely to find work, find work with higher pay, and be able to securemore hours of work than when the economy is weak. In 2000, when the economy wasclose to genuine full employment, the unemployment rate averaged 4.0 percent and thepoverty rate was 11.3 percent; but in 2010, in the aftermath of the Great Recession, theunemployment rate averaged 9.6 percent and the poverty rate was almost 15.1 percent.What changed in those years was not poor families’ attitudes toward work but simplythe availability of jobs. Among the bottom one-fifth of nonelderly households, hoursworked per household were about 40 percent higher in the tight labor market of 2000than in recession- plagued 2010.Given the opportunity for work or additional work hours, low-income Americanswork more. A full-employment agenda that increases opportunities in the labor market,alongside stronger labor standards such as a higher minimum wage, reduces poverty.

      How can we frame the science of poverty with respect to the model of statistical mechanics?

      Unemployment numbers have very little to do with levels of poverty. They definitely don't seem to be correlated with poverty levels, in fact perhaps inversely so. Many would say that people are lazy and don't want to work when the general reality is that they do want to work (for a variety of reasons including identity and self-esteem), but the amount of work they can find and the pay they receive for it are the bigger problems.

  8. Sep 2022
    1. For millions of Americans who are living pay-check to paycheck and precariously close to the poverty line, normal life eventslike the birth of a child or temporary loss of a job can send them below thepoverty line. But poverty spells tend to be short, and they are caused by the riskassociated with normal events that happen to most of us across the life course.They are just more catastrophic for some than for others.

      Can poverty be modeled after a statistical thermodynamic framework? How might we move the set point for poverty up significantly to prevent the ill effects of regular, repeated poverty?

      What does the complexity of poverty indicate? Within the web of potential indicators, what might be done to vastly mitigate the movement of people in and out of poverty? What sorts of additional resiliency can be built into the system?

    1. TLDR Hyperion is a moon orbiting Saturn and has chaotic motion about its CoM. This chaos is modeled correctly with classical mechanics but incorrectly with quantum mechanics. The catch being that if the average of all wavefunction collapses due to decoherence with interactions particles+photons is included then the prediction is correct. However, averaging is a non-physical process and, furthermore, collapsing a wavefunction requires instantaneous transfer of information which is nonphysical.

      • Saturn's moon, Hyperion, has chaotic motion due to the orientation of the moon about the orbit. Due to chaos, we can't predict orientation due to chaotic tumbling.
      • This can be described classicly with relativity.
      • Quantum Mechancis has been falsified because it fails to recreate or predict chaotic behaviors of the moon after 20 years.
      • Due to the linear nature of the eigenvector in Schrodinger's equation, it can not contain chaos.
      • By applying the correspondence principle, we only see chaos for up to the Ehrenfest time upon having the time function applied.
      • Physicists explain this incongruence in theories because the Schrodinger equation isn't including the entangled interactions of light/dust. These effects result in decoherence.
      • By averaging over the predictions we achieve the same solution as classical mechanics. Howevering averaging isn't a physical process. (e.g. rolling a 6 sided dice many times gives an average of 3.5 which is nonphysical)

      For a model to be real, we require that each individual prediction is true not the average. One solution is that Hyperion interacts and is having it's wavefunction updated nonlinearly resulting in decoherence. * Collapse of a wavefunction is said to not be physical due to instantaneous transfer of information being impossible. However, this wavefunction collapse due to interactions is required for the chaos of Hyperion to be modeled correctly. This is the issue.

  9. Jul 2022
    1. i just wanted to interject that uh could i come at this point carlo i would like to insist a bit on this because i'm i'm not quite clear 01:07:22 on whether you are agreeing or not on the question of the mind um thank you this is also i wanted to ask him the same question mario uh so by just raise the question 01:07:40 specifically all right so let me okay since we're talking about nagarjuna now i would also like to uh read some simple verses that he has and get from both from barry and you what do you 01:07:53 think so this is from chapter three examination of the sentences seeing hearing smelling tasting touching and mind are the six sense faculties their 01:08:04 spheres are the visible objects etc like the scene the herd the smell that tasted and the touched the hair sound etc and consciousness should be understood so actually i'm confused from both of 01:08:18 you first of all barry is the mind anything special in buddhist philosophy or is it just like seeing and hearing and carlo are you saying there is anything 01:08:31 special about them right

      Mario interjects in the conversation to clarify Barry's question to Carlo, which is concerning the subjective aspect of experience and how it fits into science as the observer. It comes down the the question of existence of reality and the obrserver's role in that, epitomized in the question: If a tree falls in the forest, does anybody hear?

  10. Jun 2022
  11. May 2021
  12. Mar 2021
    1. There's an interesting suggestion associated with this, that periodic fasting causes autophagy, which Taleb claims is an evolutionary process by which the weaker proteins are broken down first. If this is true, then always having a full stomach is another way of subsidizing the unfit and weakening the organism.

      This will depend on a very specific and narrow definition of fitness--perhaps one from a very individualistic and libertarian perspective.

      There is fitness at the level of the gene, the organ, the individual, and the group, and even possibly larger groupings above that.

      What if, by starving out and leaving "uneducated" people like Srinivasa Ramanujan, for example, who surely was marginalized for his time, society is left without them? While on an individual level Ramanujan may have been less fit on some levels as G.H. Hardy and may have otherwise dwindled and disappeared, Hardy adopted him and made both mathematicians better while also making dramatic strides for mankind.

      From a statistical mechanics perspective, within some reasonable limits, we should be focusing on improving ourselves as well as the larger group(s) because the end results for humanity and life in general may be dramatically improved. (Though what we mean by improved here may be called into question from a definitional perspective.)

      Compare this with [Malcolm Gladwell]]'s argument in My Little Hundred Million.

      On a nationalistic level within human politics, Republicans should be less reticent to help out marginalized Americans because it may be from this pool of potential that we may find life saving improvements or even protection from other polities (ie, in our competition or threats from countries like China, Iran, North Korea). Consider how different things may have been had the U.S. not taken in Jewish or other foreign nationals like Albert Einstein, John von Neumann, etc. in the early to mid-1900s.? Now consider, which life changing geniuses we may be preventing reaching their potential by our current immigration policies? our current educational policies?

  13. Nov 2020
    1. A trauma-informed pedagogy enables us to recognize that amid a pandemic, our students may have a difficult time completing basic tasks they normally would, including keeping track of the slightest changes in our classes, making decisions about their learning, being motivated to study or to show up, prioritizing assignments, engaging with classmates or the subject, managing their time, or simply not quitting.

      Interesting list - from the procedural to the motivational.

  14. Oct 2020
    1. The notion that counting more shapes in the sky will reveal more details of the Big Bang is implied in a central principle of quantum physics known as “unitarity.” Unitarity dictates that the probabilities of all possible quantum states of the universe must add up to one, now and forever; thus, information, which is stored in quantum states, can never be lost — only scrambled. This means that all information about the birth of the cosmos remains encoded in its present state, and the more precisely cosmologists know the latter, the more they can learn about the former.
    1. Come on, harvest me! I’ll just change your world some more.

      I wonder a bit here about the idea of what in a meme might have a substrate type of effect to decrease the overall energy of the process to help it take off.

    1. Problems of disorganized complexity are problems that can be described using averages and distributions, and that do not depend on the identity of the elements involved in a system, or their precise patterns of interactions. A classic example of a problem of disorganized complexity is the statistical mechanics of Ludwig Boltzmann, James-Clerk Maxwell, and Willard Gibbs, which focuses on the properties of gases.
  15. Mar 2020
    1. Creativity is just connecting things. When you ask creative people how they did something, they feel a little guilty because they didn’t really do it, they just saw something. It seemed obvious to them after a while. —Steve Jobs (via lifehacker and Zettel no. 201308301352)

      in other words, it's just statistical thermodynamics. Eventually small pieces will float by each other and stick together in new and hopefully interesting ways. The more particles you've got and the more you can potentially connect or link things, the better off you'll be.

  16. Jan 2019
    1. The new experiment shows that, in a quantum world, two people can end up disagreeing about a seemingly irrefutable result, such as the outcome of a coin toss, suggesting something is amiss with the assumptions we make about quantum reality.
    2. Frauchiger and Renner came up with their thought experiment, which is an extension of something the physicist Eugene Wigner first dreamed up in the 1960s.
  17. Jan 2017
    1. The interaction of forces on objects is Newtonian but in our case when the force is applied the objects are changing shape within themselves. Newtonian only discusses the in between. While we will talk in terms of forces it is really continuum but we talk like it's Newtonian.

  18. May 2015