those of us who are not astrophysicists 

 would probably do something like discard 

 the theories. Not astrophysicists. They 

 readjust the uncooperative universe to fit 

 their theories, postulating a gigantic quan- 

 tity of invisible gravity-producing stuff 

 they call black matter, even though it's not 

 black and maybe not even matter. And 

 there you are. Just like that, the modem, 

 popular theories are back in business. 



I can imagine that readers new to 

 physics and its way of doing things might 

 be skeptical, but those of us who are 

 higher up in the world of science feel noth- 

 ing but anticipation in all this theorizing. It 

 could, after all, be a step toward a newer 

 and even sillier putty. 



So that is how this book proceeds. For 

 instance, everyone — from little kids to re- 

 tired plumbers — who has heard rumors of 

 theories about an expanding universe is 

 haunted by the same question: If the uni- 

 verse is indeed expanding, what is it ex- 

 panding into? Isn't the universe every- 

 thing? I mean, what isn't universe, just 

 isn't. Right? Wrong? (Remember: You 

 have a theory that doesn't fit logic and re- 

 ality? Simple enough — change logic and 

 reality.) As I understand Hawking's book; 

 time began at the big bang. What was be- 

 fore the big bang doesn't count (in physics 

 you can do that; all you have to say is, 

 "That isn't permitted"). In sum, the uni- 

 verse is expanding into timelessness, fill- 

 ing it with matter. And time. A lot like a 

 dental appointment. 



Speaking of time, there's something in 

 Hawking's book about a theory that the 

 farther you are away from the world, the 

 slower you get old — which sounds darned 

 promising for those of us who live in Ne- 

 braska. 



Folklorist Roger L. Welsch lives on a tree 

 farm in Dannebrog, Nebraska. 



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