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explain quantum gravity
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Date: April 22nd, 2026 5:38 PM Author: Taylor Swift is not a hobby she is a lifestyle (πΊπΈ π΅π±) (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49835093) |
Date: April 22nd, 2026 5:40 PM Author: cucumbers Jewish Physics (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49835100) |
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Date: April 22nd, 2026 5:44 PM Author: UN peacekeeper find the electric field at all points in space (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49835114) |
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Date: April 22nd, 2026 5:45 PM Author: Fucking Fuckface Pretty sure that quantizing gravity is exactly what's stumped physicists for decades (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49835117) |
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Date: April 22nd, 2026 5:47 PM Author: The Penis Nothing to quantize (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49835125) |
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Date: April 22nd, 2026 5:46 PM Author: Hello, World! No such thing (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49835122) |
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Date: April 22nd, 2026 5:46 PM Author: The Penis Regime in which graph topology becomes dynamical on the same timescale as phase evolution (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49835123) |
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Date: April 22nd, 2026 6:12 PM Author: Mr Right yes but, can we control it? (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49835227) |
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Date: April 23rd, 2026 10:00 AM Author: Fucking Fuckface We'll discover that gravity is analagous to LOD (level of detail) in video games, where assets look and behave differently at different scales. As we find ways to expand our field and scale of view, we'll discover other LOD related artifacts of extremely large and extremely small varieties (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49836669) |
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Date: April 23rd, 2026 12:14 PM Author: Taylor Swift is not a hobby she is a lifestyle (πΊπΈ π΅π±) you're referring to planck's constant, which was the theoretical "minimum" for the size of energy quanta until the Higgs boson was discovered in 2012. Previously, planck's constant was thought to be the "resolution" at which we observe the universe, which is analogous to LOD in video games. But now, whether something smaller than the Higgs boson exists remains an open (and fundamental) physics question. We don't know if things just keep getting smaller and smaller almost recursively (and infinitely) or if there is something even smaller that constitutes the fundamental building block of our universe. (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49836943) |
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Date: April 23rd, 2026 12:42 PM Author: UN peacekeeper https://www.youtube.com/watch?v=XHpsRNEJ7ZU gravity “knows about” and encodes its own quantum states -> this meets the page curve and solves the black hole information paradox |
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Date: April 23rd, 2026 1:26 PM Author: Taylor Swift is not a hobby she is a lifestyle (πΊπΈ π΅π±) I like the duality concept here: Every particle has a "dual" -- that's what the higgs boson discovery suggested. There's some anti-gravity "dual" that we have yet to discover but probably comes into play. That's the extent of my knowledge on this topic, though. (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49837110) |
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Date: April 25th, 2026 6:07 PM Author: The Penis idk I think holography has resulted in some interesting research programs, I like the ones that try to reconstruct spacetime itself from "entanglement networks" and think thats a good move, but I'm not sure it will be enough.
When I look at Gravity the two things that stand out to me are the cosmological constant and the metric tensor. The cosmological constant is suspect because it was hand inserted then later removed then put back in again and it can be put on either the geometric side or mass-energy side of the equation. The thing thats interests me about the metric tensor is that it seems to be doing too much and assuming that "geometry" is the fundamental ontology and not just an effective representation. One thing especially suspect with the metric tensor is minimal coupling. It is hand inserted. It says matter fields couple to gravity only through the metric, no direct curvature coupling which is elegant but not derived. It is possible that the metric really is fundamental and gravity really is geomoetry. Or it's just a coincidence at the scale we can measure. I have more to say about this but don't feel like writing it all. A lot of it basically comes down to that there are a lot of points where geometry/smooth continuous manifolds describing "warped" space and time are suspect as fundamental vs. effective representation but basically at every leakage point we aren't quite there in terms of having the instruments to detect deviations that would prove it |
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Date: April 25th, 2026 8:40 PM Author: Taylor Swift is not a hobby she is a lifestyle (πΊπΈ π΅π±) holography is wild. I got *really* into it as a kid and have a 60 mW HeNe laser at my parents' house that I used to create holograms in one of our bathrooms. I converted it to a dark room, build a holography table (with really expensive optical mirrors and beam splitters). It's an insane field.
I even e-mailed Stephen Benton (RIP) at the MIT Media Lab when I was 15. He e-mailed me back and gave me some pointers. |
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Date: April 25th, 2026 10:13 PM Author: The Penis yeah it is. holography here isn't literally the same as the kind in optics that you are talking about, but oddly its not just a metaphor either. the mathematical mapping regarding the "duality" that the other poaster mentioned is basically strcuturaly isopmorphic with holograms that someone like stephen benton uses operating through electromagnetic fields, and the duality found in theoretical models like ads/cft operating through quantum entanglement. which is pretty insane when you think about it (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49843353) |
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Date: April 23rd, 2026 1:26 PM Author: Reinhold Messner really small gravity (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49837111) |
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Date: April 24th, 2026 12:12 PM Author: Mr Right its when you divide gravity by zero (http://www.autoadmit.com/thread.php?thread_id=5859514&forum_id=2.#49839797) |