id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_y7mvjwp5kjdubeknzgj27nz2ba	John Byron Manchak	What Is a Physically Reasonable Space-Time?*	2011	11	.pdf	application/pdf	4849	583	68	Cosmologists often use certain global properties to exclude "physically unreasonable" Recent results show one sense in which the global structure of space-time cannot be fully established (Manchak 2009a). predicament even under the inductive assumption that "the normal physical laws we determine in our space-time vicinity are applicable at all other A property on a space-time is local if, given any twoP It seems that, although our universe may be inextendible, isotropic, globally hyperbolic, and hole-free, we can never know the statement that all physically reasonable space-times are globally hyperbolic (see Joshi 1993; Earman 1995). be the motivating force behind the assumption that all physically reasonable space-times are hole-free. inextendible, globally hyperbolic space-times are not hole-free (Manchak it does follow that every inextendible, globally hyperbolic space-time, must satisfied by all physically reasonable space-times. believing that all physically reasonable cosmological models are inextendible, isotropic, globally hyperbolic, and hole-free. characteristic of physically reasonable space-time?	./cache/work_y7mvjwp5kjdubeknzgj27nz2ba.pdf	./txt/work_y7mvjwp5kjdubeknzgj27nz2ba.txt