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We describe how cosmology has converged towards a beautiful model of the Universe: the Big Bang Universe. We praise this model, but show there is a dark side to it. This dark side is usually called ``the cosmological problems'': a set of…

天体物理学 · 物理学 2015-06-24 Joao Magueijo , Kim Baskerville

This paper introduces foundations for a new kind of cosmology. We advocate that computer simulations are needed to address two key cosmological issues. First, the robustness of the emergence of complexity, which boils down to ask: "what…

综合物理 · 物理学 2012-05-08 Clement Vidal

Cosmological discoveries over the past century have completely changed our picture of our place in the universe. New observations have a realistic chance of probing nature on heretofore unimaginable scales, and as a result are changing the…

宇宙学与河外天体物理 · 物理学 2015-05-18 Lawrence M. Krauss

The fine-tuning of the universe for life, the idea that the constants of nature (or ratios between them) must belong to very small intervals in order for life to exist, has been debated by scientists for several decades. Several criticisms…

综合物理 · 物理学 2021-07-15 Daniel Andrés Díaz-Pachón , Ola Hössjer , Robert J. Marks

The objective of this paper is analyzing to which extent the multiverse hypothesis provides a real explanation of the peculiarities of the laws and constants in our universe. First we argue in favor of the thesis that all multiverses except…

元胞自动机与格子气 · 物理学 2013-04-02 Francisco José Soler Gil , Manuel Alfonseca

An interesting consequence of the modern cosmological paradigm is the spatial infinity of the universe. When coupled with naturalistic understanding of the origin of life and intelligence, which follows the basic tenets of astrobiology, and…

天体物理学 · 物理学 2008-11-26 Milan M. Cirkovic

Multiverse scenarios in cosmology assume that other universes exist "beyond" our own universe. They are an exciting challenge both for empirical and theoretical research as well as for philosophy of science. They could be necessary to…

综合物理 · 物理学 2014-11-20 Ruediger Vaas

Universe structure emerges in the unreduced, complex-dynamical interaction process with the simplest initial configuration (two attracting homogeneous fields). The unreduced interaction analysis avoiding any perturbative model gives…

综合物理 · 物理学 2015-03-20 Andrei P. Kirilyuk

Within the context of a recently proposed family of stochastic dynamical laws for causal sets, one can ask whether the universe might have emerged from the quantum-gravity era with a large enough size and with sufficient homogeneity to…

广义相对论与量子宇宙学 · 物理学 2011-04-15 Rafael D. Sorkin

The question of first-cause has troubled philosophers and cosmologists alike. Now that it is apparent that our universe began in a Big Bang explosion, the question of what happened before the Big Bang arises. Inflation seems like a very…

天体物理学 · 物理学 2012-08-27 J. Richard Gott , III , Li-Xin Li

It is fair to say that the deepest mystery in our understanding of nature is the birth of our universe. Much of the dilemma over the last decades comes from the extraordinarily small probability that the universe started with the high…

高能物理 - 理论 · 物理学 2008-09-25 Laura Mersini-Houghton

The cosmology of "Spontaneous Creation of the Universe Ex Nihilo" and the cosmology of the Symmetrical Relativity offer proposals to explain the creation and evolution of the universe. In essence they are still very distinct. However, we…

综合物理 · 物理学 2020-10-16 Cláudio Nassif Cruz , Fernando Antônio da Silva

Did natural consciousness and intelligent systems arise out of a path that was co-evolutionary to evolution? Can we explain human self-consciousness as having risen out of such an evolutionary path? If so how could it have been? In this…

人工智能 · 计算机科学 2007-05-23 U. Gayathree

Random sampling in high dimensions has successfully been applied to phenomena as diverse as nuclear resonances, neural networks and black hole evaporation. Here we revisit an elegant argument by the British physicist Dennis Sciama, which…

物理学史与哲学 · 物理学 2024-02-23 Zhi-Wei Wang , Samuel L. Braunstein

Multiacceleration scenario can be used to solve the cosmological coincidence problem. In this paper, after considering the early radiation era, we revisit the cosmological dynamics of the oscillating dark energy model proposed in…

广义相对论与量子宇宙学 · 物理学 2020-10-08 S. X. Tian

The observable universe is necessarily hospitable for life. There are indications, however, that the laws of physics and cosmological parameters need not take the form and values observed, and if they were slightly different life could not…

综合物理 · 物理学 2012-07-24 Colin S. Coleman

The idea of a multiverse -- an ensemble of universes or universe domains -- has received increasing attention in cosmology, both as the outcome of the originating process that generated our own universe, and as an explanation for why our…

天体物理学 · 物理学 2007-05-23 W. R. Stoeger , G. F. R. Ellis , U. Kirchner

Interactions with large language models have led to the suggestion that these models may soon be conscious. From the perspective of neuroscience, this position is difficult to defend. For one, the inputs to large language models lack the…

神经元与认知 · 定量生物学 2023-08-29 Jaan Aru , Matthew Larkum , James M. Shine

(abridged) Both fundamental constants that describe the laws of physics and cosmological parameters that determine the cosmic properties must fall within a range of values in order for the universe to develop astrophysical structures and…

宇宙学与河外天体物理 · 物理学 2019-09-25 Fred C. Adams

Biological activities are often seen entrained onto the day-night and other celestial mechanical cycles (e.g., seasonal and lunar), but studies on the origin of life have largely not accounted for such periodic external environmental…

混沌动力学 · 物理学 2024-08-21 Fan Zhang