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SO ENDS this first weekend on the fascinating theme of magnetism, which stretches from within the atom to across vast galaxies. This all-pervasive ether is the liquid that the cosmos is bathed in, the primal sea, perhaps even the maternal fluid of matter. It seems to have unlimited reach and influence, but our understanding of it is at best rudimentary. View in LinkedIn

NOT A REPLACEMENT. “Note that while the emergent theory in classically safe regions (far away from not only high curvature, but even curvature giving rise to event horizons) must be compatible with general relativity, it is allowed to be more detailed, e.g. fitting within the diffeomorphism invariance of general relativity.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

THE GAP. “An origin of space-time in information exchange (interactions) would have consequences at the classical level beyond what is described by general relativity, and not limited to event horizons or curvature.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

VISUALIZING THE MODEL. “An equilibrating process is assumed to exist, so that gradients are suppressed, and to begin with the points of reference can be thought of as on a lattice.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

THE BRIDGE. “For a connection to the metric, we look to rates of information exchange.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

LEANING TOWARDS FLUCTATIONS. “At the quantum level, the basic suggestion is to replace the metric tensor of general relativity (in its role of giving rise to ds2) with interactions between pairs of quantum particles, including (and heavily reliant on) quantum fluctuations.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

Sea urchin festival in Catalonia, when these delicacies are eaten raw at the beginning of spring. View in LinkedIn

KILONOVAS. “When two neutron stars (bodies so incredibly dense that a teaspoon of neutron star weighs around a whopping 1 billion tons) collided, they created an extremely bright blast, called a kilonova. Astronomers suspect important elements and metals are forged in these blasts, like gold and platinum. It is one of the proposed predominant sites for the heavier elements in the universe. “ https://lnkd.in/ebdgnYp4 View in LinkedIn

EQUILIBRATING SUBSYSTEMS. “In the particle interaction picture, however, insulation arises naturally in the limit where interactions are suppressed. In addition, it naturally leads to a disruption of a theory modelled on a region with only regular interactions, i.e. without insulation.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

“INSULATION divides unconnected and separately equilibrating subsystems, and in the temperature model it needs to be assumed separately, and be put in by hand.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn