what stocks will make me a millionaire, page-183

I agree, but I think the old adage about when "taxi drivers start to talk about the market, it's time to get out" won't apply this time. Think about the last two "bubbles": the dot-com and gold. The dot-com bubble collapsed because it was based on pure speculation; there was no underlying commodity rising on a daily basis. As for the gold bubble, that collapsed because gold simply didn't reach the heights everyone thought it would (even on the day of the 1987 crash gold only went up a bit). The current U bull market resembles neither of those scenarios. No doubt it will end - but only when a viable alternative to U comes about. This will probably be nuclear fusion. But the first prototype reactor for that doesn't come online until about 2012 (I think) in France - and even now no one is quite sure whether it will be possible satisfactorily to contain the plasma that's part of the fusion reaction.