= The End Of Everything = == (Astrophysically Speaking) == === Katie Mack 2020 523.19 MAC === NO REFERENCES [[ https://sarahheidmann.com/book-notes/end-of-everything-katie-mack/ | Book notes by Sara Heidmann, also no referenes ]] .001 Sun red giant in 5 billion years, engulfing Venus, Earth charred to magma . KL: unless we move it with flyby momentum transfer from Jupiter ... [[ https://arxiv.org/pdf/astro-ph/0102126 | Gregory Laughlin, Don Korycansky, Fred Adams ]], [[ https://theconversation.com/wandering-earth-rocket-scientist-explains-how-we-could-move-our-planet-116365 | The Conversation Matteo Ceriotti ]] .006 cosmic inflation might happen again (?) .009 bouncing neutron in gravity .039 theory of inflation, an explanation for thermal uniformity and mass nonuniformity .040 inflation until 1e-34 sec, quark era until 1e-6 sec, plasma until 380K years and transparency .049 reionization until 1e9 years .051 Andromeda approaching 110 km/s, collision in 4e9 years .067 Vera Rubin 1970s evidence -> dark matter .080 Cosmological constant 120 orders of magnitude smaller than quantum field theory suggests .082 Observable universe (from very early stars, when expansion was less) is 45 billion light years across .083 Hubble radius us 14B ly away .084 distant supernovae to redshift 4, most distant galaxies redshift 11, cosmic microwave background to redshift 1100 .087 apparent size of galaxies increases beyond Hubble radius .089 Proton decay 1e33 years? .097 Matter is 30%, dark energy is 70% .109 equation of state parameter ''w'', if less than -1, [[ https://arxiv.org/pdf/astro-ph/0302506 | doomsday ]] .114 more than 188G years from now .126 Hubble constant 74 km/s/Mpc ... 1/4.2e21s ... 1/13e14y .131 [[ https://www.researchgate.net/profile/R-Jaffe/publication/260815712_Review_of_speculative_disaster_scenarios''_at_RHIC/links/544d0e870cf2d6347f45c164/Review-of-speculative-disaster-scenarios-at-RHIC.pdf | Review of speculative "disaster scenarios" at RHIC ]] .141 Higgs vacuum is metastable .146 "You shouldn't worry about vacuum decay. Really. For several reasons" ... .165 ekpyrotic cosmos (greek for conflagration) .171 BICEP2 (Background Imaging of Cosmic Extragalactic Polarization) experiment measured CMB polarization, but explainable by cosmic dust in our galaxy .177 Martin Rees 1969 [[ https://articles.adsabs.harvard.edu/pdf/1969Obs....89..193R | The Collapse of the Universe: an Eschatological Study ]] .189 lensing, two images of one event, [[ https://iopscience.iop.org/article/10.3847/2041-8205/819/1/L8/pdf | DEJA VU ALL OVER AGAIN: THE REAPPEARANCE OF SUPERNOVA REFSDAL ]] .193 LHC is hardly even a blip compared to the particle-obliterating violence going on all around us in the universe .198 Alternate calculations for particle interactions: Nima Arkani-Hamed ... Clifford Johnson ... Neil Turok