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The Hygiene Hypothesis – Learning From but Not Living in the Past [PDF]

open access: goldFrontiers in Immunology, 2021
Postulated by Strachan more than 30 years ago, the Hygiene Hypothesis has undergone many revisions and adaptations. This review journeys back to the beginnings of the Hygiene Hypothesis and describes the most important landmarks in its development ...
Petra I. Pfefferle   +8 more
doaj   +6 more sources

The Decoherent Arrow of Time and the Entanglement Past Hypothesis [PDF]

open access: hybridFoundations of Physics
AbstractIf an asymmetry in time does not arise from the fundamental dynamical laws of physics, it may be found in special boundary conditions. The argument normally goes that since thermodynamic entropy in the past is lower than in the future according to the Second Law of Thermodynamics, then tracing this back to the time around the Big Bang means the
J S Al-Khalili, Eddy Keming Chen
exaly   +8 more sources

Hypothesis Testing and Knowledge of the Human Past [PDF]

open access: diamondOrganon F
Historians and natural scientists are adept at inferring knowledge of the past from present traces and evidence. The repository of available methods has been rapidly expanding, and historians of the human past have learned that using techniques developed
David Černín
doaj   +3 more sources

Present records of the Past Hypothesis [PDF]

open access: hybridSynthÈse
AbstractA striking feature of our world is that we only seem to have records of the past. To explain this ‘record asymmetry’, Albert and Loewer claim that the Past Hypothesis induces a narrow probability density over the world’s possible past macrohistories, but not its future macrohistories.
Athamos Stradis
exaly   +3 more sources

The Past and Present of Computer-Augmented Hypothesis Generation

open access: gold, 2023
Don Swanson's career started on a path familiar to many who read this blog. A BA in Physics from CalTech in 1945. A Ph.D. in Theoretical Physics from UC Berkeley in 1952. A decade working in scientific labs. Then his career took a turn when, after a decade of working in traditional scientific labs, Don took a professorship in the Graduate School of ...
Eric Gilliam, Corin Wagen
  +4 more sources

he amyloid hypothesis of Alzheimer's disease: past and present, hopes and disappointments

open access: diamondНеврология, нейропсихиатрия, психосоматика, 2019
In 1887, S.A. Belyakov, a physician of the Imperial Medical and Surgical Academy, first described amyloid deposits in the brain of patients with dementia. Later, in 1906, A.
I. V. Litvinenko   +7 more
doaj   +3 more sources

Modeling the Past Hypothesis: A Mechanical Cosmology

open access: yesFoundations of Physics, 2023
There is a paradox in the standard model of cosmology. How can matter in the early universe have been in thermal equilibrium, indicating maximum entropy, but the initial state also have been low entropy (the "past hypothesis"), so as to underpin the second law of thermodynamics?
Anthony Aguirre
exaly   +4 more sources

Disentangling Boltzmann Brains, the Time-Asymmetry of Memory, and the Second Law [PDF]

open access: yesEntropy
Are your perceptions, memories and observations merely a statistical fluctuation arising from of the thermal equilibrium of the universe, bearing no correlation to the actual past state of the universe?
David Wolpert   +2 more
doaj   +2 more sources

The Mobility Effects Hypothesis: Past, Present, and Future

open access: goldSSRN Electronic Journal, 2022
We discuss hypotheses researchers have put forth to explain how outcomes of socially mobile and immobile individuals might differ and/or how mobility experiences are related to outcomes of interest. Next, we examine the methodological literature on this topic, culminating in the development of the diagonal mobility model (DMM, also called the diagonal ...
Emma Zang, Michael Sobel, Liying Luo
openalex   +3 more sources

Arrow(s) of Time without a Past Hypothesis [PDF]

open access: green, 2018
Contains small corrections with respect to the previous ...
Dustin Lazarovici, Paula Reichert
openalex   +5 more sources

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