Big Bang Big Bounce

In a foreword, an author usually elucidates the aim of his book and describes an idealized reader to whom it is addressed. The first task - the formulation of the scope of the book - is the easier one, for the second one involves assessing a reader''s personality, and no "specification" should warrant the author''s being accused of snobbery, underestimating the reader, or other sins of that kind. ...