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STAGE 1. NUCLEOSYNTHESIS. “The Universe is radiation dominated at early times, with nucleosynthesis, the synthesis of the nuclei of the light elements, starting ∼ 1 s after the Big Bang.” https://lnkd.in/e6ifiQMn View in LinkedIn

“TABLE 1 summarises the history of the Universe.” (Marvelous, you cannot make this up!). https://lnkd.in/e6ifiQMn View in LinkedIn

BIG BANG PROBLEMS. “Inflation solves these problems, respectively, by driving the initial (post inflation) density extremely close to the critical density, allowing the observable universe to originate from a small region that was in causal contact prior to inflation, and diluting monopoles/massive relics.” https://lnkd.in/e6ifiQMn View in LinkedIn

“INFLATION is a period of accelerated expansion (a ̈ > 0) in the early Universe. It was proposed to solve several problems with the Big Bang.” https://lnkd.in/e6ifiQMn View in LinkedIn

“MICROLENSING occurs when the angular separation of images is too small to be resolved (∼ micro arc second) and instead the source is temporarily brightened. Microlensing is a particularly powerful technique for probing compact DM, for instance Primordial Black Holes.” (DM = dark matter), https://lnkd.in/e6ifiQMn 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

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

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