I guess it all depends on whether you think the Nasdaq of 1999 and early 2000 was real, or a mirage. Since 9-11, the Nasdaq has performed MUCH BETTER than the Dow, up about 50% vs. 25% for the Dow. Both have seen this growth since the start of the Battle of Iraq, with the Nasdaq leading the charge:
If you can find anyone who bought after 9/11. Even then, the market didn't find a bottom until Aug, 02. By then everyone was catatonic about stocks. Most trend followers like me didn't get back in until April 03 when the S&P crossed above its 200 day moving average.
BTW Harry Dent used to be a paid shill for a mutual fund company. IOW, put all your money in our funds and leave 'em there. The Dow's going to 30,000.