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Response to `Local and global definitions of time:Cosmology and quantum theory'
Local global definitions time Cosmology quantum theory
2016/6/15
I will discuss the notion of time and spatial finiteness from the perspective of observational cosmology. Our observed universe is well described at early times by small fluctuations in the spatial gr...
Local and global definitions of time:Cosmology and quantum theory
Cosmology relational time spatial extent time
2016/6/15
I will give a broad overview of what has become the standard paradigm in cosmology. I will describe the relational (\`{a} la Leibnitz) notion of time that is often used in cosmological calculations an...
Benefits of Objective Collapse Models for Cosmology and Quantum Gravity
Objective collapse Dynamical reduction Quantum gravity Cosmology
2016/6/15
We display a number of advantages of objective collapse theories for the resolution of long-standing problems in cosmology and quantum gravity. In particular, we examine applications of objective redu...
On Under-determination in Cosmology
under-determination the standard model of cosmology observationally indistinguishable spacetimes the cosmological principle the flatness problem the horizon problem
2016/6/12
I discuss how modern cosmology illustrates under-determination of theoretical hypotheses by data, in ways that are different from most philosophical discussions. I emphasize cosmology's concern with w...
The fundamental arrow of time in classical cosmology
Time Asymmetries Cosmology Cosmological Time Arrow
2016/5/31
The aim of this paper is to show that a new understanding of fundamentality (section 2), can be applied successfully in classical cosmology and is able to improve a fundamental understanding of cosmol...
Testability and Epistemic Shifts in Modern Cosmology
cosmology multiverse theory evaluation testability falsifiability demarcation criteria Popper
2016/5/30
During the last decade new developments in theoretical and speculative cosmology have reopened the old discussion of cosmology’s scientific status and the more general question of the demarcation betw...
“The most philosophically of all the sciences”:Karl Popper and physical cosmology
Karl Popper Hermann Bondi cosmology falsifiability demarcation steady state theory
2016/5/30
Problems of scientific cosmology only rarely occur in the works of Karl Popper. Nevertheless, it was a subject that interested him and which he occasionally commented on. What is more important, his g...
A probabilistic logic of induction is unable to separate cleanly neutral support from disfavoring evidence (or ignorance from disbelief). Thus, the use of probabilistic representations may introduce s...