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swansont

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Everything posted by swansont

  1. How do you assess if you are making progress? It can’t think.
  2. Friends of mine used to live in Crystal City, VA, which had apartments, shopping at the ground level and a metrorail stop. But most areas in northern Virginia built out, not up. A lot of one- and two-story malls. I was lucky to have lived in a complex a short distance away from one so I could walk to do shopping if I wanted/needed to (but was obviously limited to what I could carry) but most of the residential area wasn’t close enough.
  3. Discussions of Grok or any AI are OT, but if you have the impression that it’s thinking (“we THINK”) you are too far down the rabbit hole. No, that’s not entanglement, which is a particular correlation that undetermined states will have when they are measured. “now” is not a well-defined term in physics. You’d need to test that hypothesis, but I think we’d have already noticed the correlation between solar flares and getting bombarded by high-energy particles here on earth, rather than solar magnetic activity like sunspots.
  4. And temperature in kinetic theory is the center-of-mass kinetic energy. When QM is incorporated it shows up as a fraction of atoms in excited states, so at absolute zero everything is in the ground state AFAIK, it’s not clear that the energy isn’t zero. Gravitational potential energy is negative. Some interactions have infinite range, so I don’t see how you get there. The interactions may be quite small, but electromagnetic and gravitational effects don’t actually cease. How would an “overall” system get to zero but a subsystem doesn’t? Temperature in any equilibrium state is positive. I don’t think we have any evidence that models would fail It’s not nonsensical to ask - that leads to discussion of what’s happening. (it would be like asking if lacking knowledge/not understanding something is nonsensical; of course not. Everybody has things they don’t know or understand) It’s asserting things that can be.
  5. No. That’s a reasonably accurate pop-sci description; the electron is nominally a point particle and if you detect it, it is localized. But as you know, the actual science is more nuanced than popular, qualitative descriptions.
  6. Motion is always with respect to something else; it doesn’t require an interaction. Having no motion isn’t possible, since absolute zero isn’t attainable Electrons “in orbit” aren’t moving; they have no trajectory. This is the domain of quantum mechanics. Electrons are not in classical, planetary orbits
  7. Yes, but in SN 1987a it was ~3 hours and that was 168,000 LY away. The timing discrepancy is irrelevant to the point I was making; you can’t argue the the neutrino burst was part of some “continuous existence” which seems to be part of the erroneous argument/misunderstanding here
  8. (for those unfamiliar: Costco is a chain of warehouse-style store, selling lots of varied things including groceries, electronics, appliances and furniture) “A first-of-its-kind Costco with 800 apartment units above it is coming to Baldwin Hills, a neighborhood in South Los Angeles that Census Reporter finds has a poverty rate 25% higher than the national average.” https://www.entrepreneur.com/business-news/hundreds-of-apartments-are-being-built-on-top-of-a-costco/485190 In the US, commercial property is generally separated from residential (at least in spread-out areas), owing to zoning laws, and it’s been this way for a while - anything built in the last 75-100 years in many places. I think in older, high-density cities (e.g. northeast, like NYC and Boston) you still have places with residential-above-commercial, but not so much in western cities that expanded more recently. So this is kind of a big deal to waking up to the housing situation and struggles of lower-income people who lack personal transportation. And smart for Costco, because pretty much all of the residents are going to shop there
  9. Which has nothing to do with “spooky action” If that star goes supernova, the neutrinos get here in ~3.4 years, not immediately. But if you measured an entangled particle, you immediately know the state of its partner, though it would take 3.4 years to confirm it. It’s not going to make an appearance in an ongoing thread here, though
  10. It’s not reasonable to expect otherwise. Chemicals/drugs have effects. If one effect is that it fights a disease, we are tempted to use it. But why would it have only that effect? What we hope for is that the effects other than fighting a disease are tolerable. If not, the drug is not used. Quantum computers aren’t really geared toward that, should they ever scale up. Supercomputers are undoubtedly already being used. AI, too, but it would be machine learning to analyze data. LLMs can only sift through what they’ve been trained on, so probably not. Neither they nor quantum computers are magic.
  11. The rate at which it passes does, but not the existence of time itself. Religious belief is not empirical fact. You might take it as a given, but it is not. Yes, in college physics we had a lab where we did it. The rotating mirror experiment Markus described. If there was something missing there would be experimental anomalies. Which is not remotely the same thing. Works of fiction aren’t much of a rebuttal, because they’re literally made up.
  12. The ones I’ve had were OK for a brief shower. Just not immersion. I joked that I was Tony Stark.
  13. IIRC, one factor is that colder, drier air helps the virus survive longer - heat and humidity impede it. edit: yup https://samaritanmedicalcare.com/why-the-flu-is-more-common-in-winter-the-science-behind-the-surge/ The virus has a protective lipid layer that becomes more stable in cold, dry environments. When temperatures drop, this coating hardens, allowing the virus to survive longer outside the body. This makes transmission easier during the winter months, as the virus remains infectious for extended periods on surfaces and in the air. Moreover, the lower humidity common during winter months further aids the spread of influenza. In dry air, respiratory droplets containing the virus can travel farther, increasing the likelihood of transmission
  14. “around 1.4 billion years ago, during the Mesoproterozoic era (1.6 to 1.0 billion years ago), Earth’s atmosphere contained ten times more carbon dioxide than today. This high CO2 level helped maintain a climate similar to the present, even though the Sun was significantly weaker at the time. These high levels, along with temperature estimates based on the salt, indicate that the Mesoproterozoic climate was more mild than researchers theorized. The atmosphere also had 3.7% of today’s oxygen levels. While this might not seem like a lot, it’s still an unexpectedly high quantity“ https://gizmodo.com/researchers-just-sampled-1-4-billion-year-old-air-and-its-not-what-they-expected-2000706812
  15. The created particle will have a wavelength, but is not an entity in and of itself, so asking if the wavelength can carry on is awkward phrasing. Fir example - a neutron decays into a proton, positron, and neutrino. Each will have a wavelength, because they have momentum and kinetic energy, and they all can interact Decay products can cause secondary ionizations in materials; charged particles can cause quite a few since they don’t need to undergo a direct collision. That’s how the decay products generally lose their energy. In addition, the forum was offline for a bit, which affected traffic even after it came back online
  16. I think that this can lead to rapid drops in stock price; as some lose faith and sell it compels others (more rational people) to get out and take their profit, but that erodes the faith, and the whole thing can cascade. There’s a saying that in the short term, stocks are a voting machine but in the long term it’s a weighing machine. Actual monetary value eventually wins out over emotion snd irrationality, but bubbles can take a while to pop.
  17. Time existed before humans did, and we can observe time-dependent effects from the past. We did not “invent” it any more than we invented length. And yet you’ve made absolutely no connection between the two.
  18. This might have been a coup “According to the sources, Qatari mediators presented to the U.S. two formal proposals this year, one in April and another in September. Both outlined potential governing mechanisms without Maduro in power. In those scenarios, Delcy Rodríguez would serve as the institutional continuity figure, while retired Gen. Miguel Rodríguez Torres, who is currently in exile and is not related to the Rodriguez siblings, would head a transitional government.” https://www.miamiherald.com/news/nation-world/world/americas/venezuela/article312516272.html#storylink=cpy IOW, Trump and Co. got played
  19. Apparently the oil companies are less than thrilled with this. Heavy crude (and with contaminants like sulphur, so it’s “sour”) is more expensive to refine. It’s used for diesel, not gasoline, but having more on the market just drives prices down. Plus there’s an investment in both time and money in the infrastructure that’s needed. I think big oil sees future demand dropping owing to EVs, so there would be a question of how profitable this might be, even before you worry about political instability rendering the investments moot.
  20. Some, but far from a majority They’re already lining up financial folks for investment opportunities, but there’s a huge gap in getting there that I don’t think they appreciate. They’re seeing “Step 4: Profit!” but steps 2 and 3 are blank. The tepid response is disheartening. Too many people joining the “the ends justify the means” caucus in the US. Not a lot of strong condemnation outside the US, but I think they are rightly less concerned with whether proper internal protocol was followed. (From before the attack)
  21. Under that condition, because you are assuming the same r. But not in general.
  22. un-ionize, i.e. become neutrally charged
  23. 1/2^xP doesn’t look to be a valid formula. xP needs to be dimensionless, which matters even if there was some physical basis for it making any sense.
  24. Tesla makes a bundle selling carbon credits, but as their sales fall and other manufacturers grow, that profit stream will shrink. Bubbles eventually burst.

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