Page 9 - A Brief History of Time - Stephen Hawking

A Brief History of Time - Stephen Hawking... Chapter 1
Because the partial theories that we already have are sufficient to make accurate predictions in all but the most
extreme situations, the search for the ultimate theory of the universe seems difficult to justify on practical
grounds. (It is worth noting, though, that similar arguments could have been used against both relativity and
quantum mechanics, and these theories have given us both nuclear energy and the microelectronics
revolution!) The discovery of a complete unified theory, therefore, may not aid the survival of our species. It
may not even affect our lifestyle. But ever since the dawn of civilization, people have not been content to see
events as unconnected and inexplicable. They have craved an understanding of the underlying order in the
world. Today we still yearn to know why we are here and where we came from. Humanity’s deepest desire for
knowledge is justification enough for our continuing quest. And our goal is nothing less than a complete
description of the universe we live in.

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