❗ 💡 ⭐ hi all, the 3rd black hole merger capture by LIGO was announced within the last week. a huge deal!**[f]** have been tracking this area. its a *“ringing/ rippling”* excitement in physics and cosmology, its like christmas and even conservative scientists are talking in profound terms. a new detector is going online soon in europe (named Virgo in Pisa, Italy)**[f11]** and there are predictions that up to about 1 event per day may be observable after all the machines are finetuned!

☯️ this all coincides with a lot of theoretical commotion at the same time. ofc as long observed here, experiment and theory are like yang+yin, each energeizes and contains elements of the other, so to speak. its well/ widely acknowledged that GR+QM unification is a/ the big/ key open question of physics and there are a lot of new ideas circulating, and anything to do with gravity is nearly by defn highly coupled with GR.**[b]** this also ties in with new theories about big bang/ expansion.**[e]** theres some big contention going on.

am esp interested in Verlindes ideas about gravity as an “emergent phenomenon” that possibly is a solution to the “dark matter” problem.**[c]** have been promoting this rough conceptual idea myself for many years and feel it ties in naturally with pilot wave hydrodynamics and soliton dynamics (latest big writeup on that only ~½ yr ago). in short, an image to ponder: a wave-particle seems to continuously emanate waves out to infinity. *what effect do those have collectively? is there some emergent property there?*

heres another thought experiment proposed in the physics chat room by me: imagine two balloons in a swimming pool, submerged such that their weight exactly matches/ cancels the buoyant force. do the two balloons exert any force on each other? none? now consider that the balloons have an internal energy source that causes them to oscillate (inflate/ deflate). *now what?* have to work out the math for this sometime!

pondering these types of questions like Verlinde is doing can verge on near heresy in a field that has been extremely reductionistic for centuries, and mostly with huge accomplishment and strong success. but it seems to me that to get to the Really Big Picture physicists may have to give up their near-addiction to reductionism. Verlinde is one of the few with similar sentiments/ feelings. one might even argue that Newtons Principia was a classic in inspired, largely nonreductionistic synthesis. but visionaries are always rare, by definition.

its looking like black holes and gravitational wave measurement may lead the way toward new theory.**[d]** could there be some way to connect up the deep mysteries such as dark matter and QM properties at extreme spacetime (black holes, big bang) to this new observational science? there are some hints its happening right now. its a lot on many levels, *“a whole new toy to play with…” and so much deeper too… Einstein strikes again!* 😀 😎 ⭐ ❤

**a. gravity**

- 1. Interactive: What Is Space? | Quanta Magazine
- 2. Einstein in Matrix Form: Exact Derivation of the Theory of Special and General Relativity without Tensors (Graduate Texts in Physics) 2013, Günter Ludyk – Amazon.com
- 3. Physicists Are Closing in on Intriguing Evidence For a Fifth Force Of Nature
- 4. spacetime – Emergence of space from quantum mechanics – Physics Stack Exchange

**b. quantum**

- 1. Gravity doesn’t care about quantum spin | Ars Technica
- 2. Does Spacetime Emerge From Quantum Information? | Sean Carroll
- 3. Space Emerging from Quantum Mechanics | Sean Carroll
- 4. Tensor Networks And Entanglement | Quanta Magazine
- 5. The missing piece — Starts With A Bang! — Medium
- 6. The equation that could transform physics: Researchers say ER=EPR could show how quantum mechanics fits into the theory of general relativity | Daily Mail Online
- 7. Quantum Gravity’s Time Problem | Quanta Magazine
- 8. Quantum Gravity Research Could Unearth the True Nature of Time | WIRED
- 9. A Physicist’s Crash Course in Unpeeling the Universe – The New York Times

**c. dark matter**

- 1. Backreaction: The Bullet Cluster as Evidence against Dark Matter
- 2. Inside the Experimental Search for Dark Matter – The Daily Beast
- 3. Deep Within a Mountain, Physicists Race to Unearth Dark Matter | WIRED
- 4. Is dark matter subatomic particles, a superfluid, or both? | Aeon Essays
- 5. Backreaction: Can dark energy and dark matter emerge together with gravity?
- 6. The Man Who’s Trying to Kill Dark Matter | WIRED
- 7. Erik Verlinde’s Gravity Minus Dark Matter | Quanta Magazine
- 8. Einstein’s gravity theory could be wrong as new theory passes first test | Daily Mail Online
- 9. [1612.03034] First test of Verlinde’s theory of Emergent Gravity using Weak Gravitational Lensing measurements

**d. black holes**

- 1. Gravitational vortex provides new way to study matter close to a black hole | University of Cambridge
- 2. [1510.00621] Observation of thermal Hawking radiation and its entanglement in an analogue black hole
- 3. Black hole made in the lab shows signs of quantum entanglement | New Scientist
- 4. Wormhole Entanglement and the Firewall Paradox | Quanta Magazine
- 5. Is the black hole at our galaxy’s centre a quantum computer? | Aeon Essays
- 6. Theoretical physics: Complexity on the horizon : Nature News & Comment
- 7. Backreaction: New link between quantum computing and black hole may solve information loss problem
- 8. LIGO black hole echoes hint at general-relativity breakdown : Nature News & Comment
- 9. Exotic black holes caught turning into a superfluid | New Scientist
- 10. What Sonic Black Holes Say About the Real Deal | WIRED
- 11. Gravitational Wave Kicks Monster Black Hole Out of Galactic Core | NASA

**e. inflation**

- 1. A Cold War Among Cosmologists Turns Hot – The Atlantic
- 2. A Debate Over Cosmic Inflation (and Editing at Scientific American) Gets Heated
- 3. Cosmic Inflation Theory Faces Challenges – Scientific American
- 4. Did the Universe Boot Up with a “Big Bounce?” – Scientific American
- 5. Physicists Can’t Agree on What Science Even Means Anymore | WIRED

**f. waves**

- 1. Even Einstein Didn’t Think Gravitational Waves Existed | WIRED
- 2. Advanced LIGO Listens for Gravitational Waves | Quanta Magazine
- 3. Gravitational Waves Discovered at Long Last | Quanta Magazine
- 4. 6 Things You Probably Didn’t Know About Gravitational Waves | WIRED
- 5. Gravitation under human control? Physicist proposes using magnetic fields to produce and detect gravitational fields — ScienceDaily
- 6. Gravitational Waves May Permanently Alter Spacetime — NOVA Next | PBS
- 7. Listening to the Heavens: The Discovery of Gravitational Waves Proved Einstein Right
- 8. Echoes in gravitational waves hint at a breakdown of Einstein’s general relativity – ScienceAlert
- 9. Do ripples in space-time herald a new theory of gravity? | Aeon Essays
- 10. LIGO Physicists Find Another Gravitational Wave to Prove Einstein Right | WIRED
- 11. Scientists Find Gravitational Waves for a Third Time | Inverse