For those of us new to TP and without a rudimentary knowledge of entropy, 1st/2nd LOTD, etc, let me heartily recommend what I clearly believe to be an appropriate companion to his works: The 'fridge and the universe. Descriptive information is available at Amazon's web site;-- http://www.amazon.com/exec/obidos/ISBN=0674753259/8744-1813529-619523 -R