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EMERGENT GRAVITY. “We see flocks of birds and schools of fish undertake coherent motion in groups, but they are really made up of individual animals. We say that the group behavior is emergent. It may be that something that arises out of the pixelation of spacetime has just been given the name gravity because we don’t yet understand what the guts of spacetime are.” https://lnkd.in/eAGRJ6Qh View in LinkedIn

EMERGENT WORLD. “The world is made of qubits ... What we perceive to some degree of approximation as a world of single-valued variables is actually part of a larger reality in which the full answer to a yes-no question is not just yes or no, nor even both yes and no in parallel, but a quantum-observable – something that can be represented as a large Hermitian matrix”. (Professor David Deutsch, Oxford University, page 15). https://lnkd.in/eAxeE3iE View in LinkedIn

SEARCH FOR STRUCTURE. “The density distribution of the SHM is formally infinite and hence the velocity distribution extends to infinity too. In reality the Milky Way halo is finite, and particles with speeds greater than the escape speed…will not be gravitationally bound to the MW.” (SHM = The standard halo model; MW = Milky Way). https://lnkd.in/e6ifiQMn View in LinkedIn

“STRUCTURE formation happens hierarchically, and real DM halos haven’t reached a steady state. They contain substructure in the form of subhalos and tidal streams, and the velocity distribution contains imprints of the halo’s assembly history.” (DM = dark matter). https://lnkd.in/e6ifiQMn View in LinkedIn

EQUILIBRIUM. “Collisionless particles can change their energy and reach a steady state if they experience a fluctuating gravitational potential (a process known as ‘violent relation’).” https://lnkd.in/e6ifiQMn View in LinkedIn

SULFATE STORY. “One estimate is that 326–527 gigatonnes of SO2 were distributed globally in the stratosphere. Another, in broad agreement, put the quantity of stratospheric SO2 in the range of 200–400 gigatonnes.” https://lnkd.in/e5hTuW74 View in LinkedIn

BLOCKING THE SUN. “A result of the asteroid impact would have been the ejection into the stratosphere of particulate carbon soot, CO2 and sulfate aerosols. This would have had a marked cooling effect on the climate from the absorption of much solar radiation.” https://lnkd.in/e5hTuW74 View in LinkedIn

TYPE OF DUST. “The Chicxulub site contains vast amounts of limestone (CaCO3), anhydrite (CaSO4) and gypsum (CaSO4.2H2O) as well as hydrocarbons.” https://lnkd.in/e5hTuW74 View in LinkedIn

DUST AND AEROSOL CLOUD. “The consequences of that impact would indeed have been catastrophic, not just in the geographic region around the impact site, but worldwide because of environmental changes from an atmospheric dust and aerosol cloud that would have remained for years in the stratosphere.” https://lnkd.in/e5hTuW74 View in LinkedIn

COINCIDENT IN TIME. “The discovery of the Chicxulub impact crater in the Yucatan Peninsula on the Gulf of Mexico confirmed, from its size and structure, that a large celestial object had collided with the Earth at the time that the mass extinctions had occurred.” https://lnkd.in/e5hTuW74 View in LinkedIn