The most successful of these five investors—let’s call her Ms. Perfect—invested her money on the best possible day each year: the day when the market hit its exact low point for that year. This mythical investor, who perfectly timed the market for 20 years running, ended up with $87,004. The investor with the worst timing—let’s call him Mr. Hapless—invested all of his money on the worst possible day each year: the day when the market hit its exact high point for that year. The result? He ended up with $72,487. What’s striking is that, even after this 20-year run of spectacularly bad luck, Mr.
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