= Reality is Not What It Seems = == The Journey to Quantum Gravity == === Carlo Rovelli 2017 . Cedar Mill 503.143 === -------- . Author of [[ http://catalog.wccls.org/polaris/search/searchresults.aspx?ctx=1.1033.0.0.6&type=Browse&term=Seven%20brief%20lessons%20on%20physics&by=TI&sort=TI&limit=TOM=*&query=MTE=%2767669298%27&page=0&searchid=0 | "Seven Brief Lessons on Physics" ]] Idea is that spacetime is quantized, connection graphs between nodes at Planck scale. "Big bang" is "big bounce" .p059 Maxwell's equations: dF = 0, d*F = J (?? divergence and curl of "field" ?? ) .p157 [[ http://www.webofstories.com/play/9542?o=MS | John Wheeler audio ]] .p182 "time does not exist" at the Planck scale, time is relational at large scale .p220 Possible loop quantum gravity prediction of background radiation spectrum . graph vs. k,,(co-moving),, which ranges from 0 to 20 ... and what is k,,(co-moving),,? . A. Ashtekar, I. Agullo, W. Nelson ... probably fig. 1 of [[ https://arxiv.org/pdf/1209.1609 | Quantum gravity extension of the inflationary scenario]] , 2012 ------ == Seven Brief Lessons on Physics == === Hillsboro 530 Rovelli 2016 === ----- Quick fluff ... page 48 shows "bounce" from prior phase. Would that bounce homogenize the universe ... instead of inflation? ------ === There Are Places in the World Where Rules Are Less Important Than Kindness === === West Slope Library 500 Rovelli 2018 === ---- Sorta interesting essays, literary mostly . Aristotle the Scientist; not as wrong as Galileo's attacks. Light objects ''do'' fall slower ... in air . Vladimir Nabokov, Lolita and lepedopterist . Newton's alchemy - notes but not publication. Not secrets, instead nothing found convincing . Copernicus / 1977 youth movement / Brecht Galileo / Dante universe model / Statistical Outliers . [[ https://en.wikipedia.org/wiki/Bruno_de_Finetti | Bruno de Finetti ]] subjective probability . Does Science Need Philosophy? ''dismissing philosophy is not science, but philosophy'' . [[ https://en.wikipedia.org/wiki/Other_Minds:_The_Octopus,_the_Sea,_and_the_Deep_Origins_of_Consciousness | Other Minds ]] (Octopus) . Chandrasekhar, hard work more important than intelligence . When Einstein learned of his errors, he changed his mind . Archimedes "The Sand Reckoner", method to express very large numbers (largest named number was myriad, 10,000 . Inequality, Rousseau / Ancient Wars / Politics / National Identity / Darwin / Curie . Lemaître ... cosmology closest to religion . [[ https://en.wikipedia.org/wiki/Giacomo_Leopardi | Giacomo Leopardi ]] wrote History of Astronomy age 15, poet . Lucretius ''De rerum natura'' | [[ https://en.wikipedia.org/wiki/David_Lewis_(philosopher) | David Lewis ]], plurality of worlds . Naturalism | [[ https://en.wikipedia.org/wiki/Nagarjuna | Nāgārjuna ]] . Mein Kampf - ''fear of being weak'' . Black Holes: Einstein and Schwarzchild / Hawking and Heat / Collapse (and time dilated quantum rebound?) . Kip Thorne and gravitational waves | Hawking radiation | Roger Penrose | Baby Jesus and presents; peace instead? . Global Warming | Churchill and Science | Infinite Divisibility of Space, Zeno's (false) paradox . [[ https://en.wikipedia.org/wiki/Ramon_Llull | Ramon Llull ]] | Are We Free? (we don't know how to know) . LSD | Why I am an Atheist (mystery ''is'') | [[ https://en.wikipedia.org/wiki/Hadza_people | Hadza people ]] . A Day in Africa | The Festive Season is Over | This Short Life Feels Beautiful To Us ( COVID )