The wild cards in our future: Preparing for the improbable.

Reports that the rapidly growing technological prowess of humans has produced classes of improbable futures that could destroy the whole human race. Importance of studying `wild cats'; Reducing worldwide population through epidemic; Ethical questions in human cloning; Probable result of a no-carbon economy; Analysis on man's relationship with computers; Indicators of altruism outbreak; Implications of the collapse of the sperm count. INSET: More wild cards in the deck..