Early in the series, Patrick Stewart came up to us and asked how 
warp drive worked. We explained some of the hypothetical principles 
described in this volume, but added that such a device is far beyond 
present-day physics. We emphasized that no one has any real idea how to 
make a ship go faster than light. ÒNonsense,Ó Patrick declared. ÒAll you have 
to do is say, ÔEngage.ÕÓ And he was rightÉ.  Æ