41.   When that happens, then millions of Americans cross the line into irrational exuberance, if they continue to drive up stock prices, unmindful of the changed circumstances.

42.   Yet one of the byproducts of the irrational exuberance in Internet stock prices is that the prophesied greatness of certain companies becomes self-fulfilling.

43.   Greenspan warned Wednesday that the issue of irrational exuberance in US financial markets remains current.

44.   US Federal Reserve Chairman Alan Greenspan warned Thursday that the issue of irrational exuberance in US financial markets remains current.