This preview shows page 1. Sign up to view the full content.
Hawking's NoSingularity Model
In
A Brief History of Time
, Stephen Hawking presented a new model of a beginningless universe.
Hawking does not challenge the idea that the universe is finite in space and time. Consequently,
there is no time earlier than 1610 billion years ago. Nonetheless, if the univese does eventually
collapse back into a infinitesimal point, and if we use a mathematical technique known as
"imaginary time", we can model spacetime as a smooth, uneventful surface, with the Big Bang
as the North Pole and the Big Crunch as the South Pole. Hawking's model involves "spatializing"
time  turning time into a spatial dimension, no different from the familiar three dimensions of
space. Hence, his model involves a radical rejection of change and becoming: the universe is an
unchanging, multidimensional whole, given once for all. Change is merely variation along a
static dimension.
Hawking's model is highly speculative, based on what Hawking believes a quantum theory of
This is the end of the preview. Sign up
to
access the rest of the document.
 Fall '09
 JorgeRigol

Click to edit the document details