منابع مشابه
Note on parallel universes
The parallel universes idea is an attempt to integrate several aspects of learning which share some common aspects. This is an interesting idea: if successful, insights could cross-fertilise, leading to advances in each area. The ‘multi-view’ perspective seems to us to have particular potential. We have investigated several aspects of this, including the following: 1 Adverse drug reactions One ...
متن کاملOn Cyclic Universes
An old question in theoretical cosmology is whether an infinitely oscillatory universe which avoids an initial singularity can be consistently constructed. As realized by Friedmann and especially by Tolman one principal obstacle is the second law of thermodynamics which dictates that the entropy increases from cycle to cycle. If the cycles thereby become longer, extrapolation into the past will...
متن کاملOn Universes in Type Theory
The notion of a universe of types was introduced into constructive type theory by Martin-Löf (1975). According to the propositions-as-types principle inherent in type theory, the notion plays two rôles. The first is as a collection of sets or types closed under certain type constructions. The second is as a set of constructively given infinitary formulas. In this paper we discuss the notion of ...
متن کاملParallel Universes
I survey physics theories involving parallel universes, which form a natural four-level hierarchy of multiverses allowing progressively greater diversity. Level I: A generic prediction of inflation is an infinite ergodic universe, which contains Hubble volumes realizing all initial conditions — including an identical copy of you about 10 29 m away. Level II: In chaotic inflation, other thermali...
متن کاملParallel Universes
One of the niftiest things about quantum mechanics is that it allows, via quantum tunneling (described in the Quantum Notes and in the lecture), many seemingly impossible events to occur, like walking through a brick wall, surviving after getting shot in the face, and meeting the girl of your dreams. Continuing on the theme of “possibility,” these notes describe parallel universes, in which eve...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2015
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2015/10/059