Everything starts somewhere, although many physicists disagree.
  But people have always been dimly aware of the problem with the
start of things. They wonder aloud how the snowplough driver gets to
work, or how the makers of dictionaries look up the spelling of the
words. Yet there is the constant desire to find some point in the
twisting, knotting, ravelling nets of space-time on which a metaphorical
finger can be put to indicate that, here, is the point where it all
began...