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← A black hole is its event horizon, not the matter crushed to a point at the centre.

14 connected korrents · 9 moments from 21 Sept 2023 to 9 Sept 2026.

Everything filed under physics physics Everything filed under energy energy Everything filed under quantum mechanics quantum mechanics Everything filed under solar solar Same subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subject Read this korrent: A black hole is its event horizon, not the matter crushed to a point at the centre. A black hole is its event horizon, not thematter crushed to a point at the centre. Last stated a year ago 5 May 2025 JL Janna Levin — holds since 2025-05-05 — tap for who they are Same subject: The singularity of a black hole is not a place at its centre but a moment in your future: falling in, you run out of time rather than out of room. — tap to centre the map on it The singularity of a black hole isnot a place at its centre but amoment in your future: falling in,you run out of time rather than outof room. Last stated 2 years ago 22 Apr 2024 SC Sean Carroll — holds since 2024-04-22 — tap for who they are Same subject: A black hole is featureless in the way a fundamental particle is: charge, mass and spin are the whole of it, and no two differ in anything else. — tap to centre the map on it A black hole is featureless in theway a fundamental particle is:charge, mass and spin are the wholeof it, and no two differ in anythingelse. Last stated a year ago 5 May 2025 JL Janna Levin — holds since 2025-05-05 — tap for who they are Same subject: Black holes are not the same thing as dead stars; they are a more general and more fundamental phenomenon than the end state of a star. — tap to centre the map on it Black holes are not the same thingas dead stars; they are a moregeneral and more fundamentalphenomenon than the end state of astar. Last stated a year ago 5 May 2025 JL Janna Levin — holds since 2025-05-05 — tap for who they are Same subject: Inside a black hole the singularity is not a place you could steer around; it is a moment in your future you can no more avoid than time itself. — tap to centre the map on it Inside a black hole the singularityis not a place you could steeraround; it is a moment in yourfuture you can no more avoid thantime itself. Last stated a year ago 5 May 2025 JL Janna Levin — holds since 2025-05-05 — tap for who they are Same subject: The bigger the black hole, the less you would notice crossing its horizon, because curvature is harder to feel the larger it gets. — tap to centre the map on it The bigger the black hole, the lessyou would notice crossing itshorizon, because curvature is harderto feel the larger it gets. Last stated a year ago 5 May 2025 JL Janna Levin — holds since 2025-05-05 — tap for who they are Same subject: Declining many-worlds because it extrapolates past what we can observe is methodologically respectable and still a failure of nerve. — tap to centre the map on it Declining many-worlds because itextrapolates past what we canobserve is methodologicallyrespectable and still a failure ofnerve. Last stated 2 years ago 22 Apr 2024 SC Sean Carroll — holds since 2024-04-22 — tap for who they are Same subject: Decoherence has not yet satisfactorily solved the measurement problem and does not restore local causality. — tap to centre the map on it Decoherence has not yetsatisfactorily solved themeasurement problem and does notrestore local causality. Last stated 3 years ago 21 Sept 2023 SH Sabine Hossenfelder — holds since 2023-09-21 — tap for who they are Same subject: Export controls cannot stop China from training frontier models; what they can do is cap how much AI China gets to run. — tap to centre the map on it Export controls cannot stop Chinafrom training frontier models; whatthey can do is cap how much AI Chinagets to run. Last stated 2 years ago 3 Feb 2025 NL Nathan Lambert — holds since 2025-02-03 — tap for who they are Same subject: "Carbon intensity" metrics let oil companies claim climate progress even as their total emissions rise from increased production. — tap to centre the map on it "Carbon intensity" metrics let oilcompanies claim climate progresseven as their total emissions risefrom increased production. Last stated a month ago 9 Sept 2026 EA Emily Atkin — holds since 2026-09-09 — tap for who they are Same subject: "Food from thin air" is not from thin air: it runs on water, minerals, ammonia and industrial plant. — tap to centre the map on it "Food from thin air" is not fromthin air: it runs on water,minerals, ammonia and industrialplant. Last stated 4 months ago 30 Jun 2026 CS Chris Smaje — holds since 2026-06-30 — tap for who they are Same subject: A country outside the AI supply chain should just buy the index — which works only in the world where AI ends up commoditised rather than concentrated. — tap to centre the map on it A country outside the AI supplychain should just buy the index —which works only in the world whereAI ends up commoditised rather thanconcentrated. Last stated 5 months ago 4 Jun 2026 AI Alex Imas — holds since 2026-06-04 — tap for who they are Same subject: A data centre powered by solar and batteries alone needs an array so oversized that the design is not worth building. — tap to centre the map on it A data centre powered by solar andbatteries alone needs an array sooversized that the design is notworth building. Last stated 3 years ago 18 Apr 2024 AV Austin Vernon — holds since 2024-04-18 — tap for who they are Same subject: A future of constrained energy will need more people working the land, and that is not the same as going back to the past. — tap to centre the map on it A future of constrained energy willneed more people working the land,and that is not the same as goingback to the past. Last stated 4 months ago 30 Jun 2026 CS Chris Smaje — holds since 2026-06-30 — tap for who they are Same subject: A solar panel is a manufactured object that produces wealth rather than consuming it, at a hundred times the rate of the best farmland. — tap to centre the map on it A solar panel is a manufacturedobject that produces wealth ratherthan consuming it, at a hundredtimes the rate of the best farmland. Last stated 2 years ago 9 Nov 2024 CH Casey Handmer — holds since 2024-11-09 — tap for who they are
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At the centre A black hole is its event horizon, not the matter crushed to a point at the centre. Last stated 5 May 2025 · a year ago Holds Janna Levin Read this korrent →