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“The Parrondo Paradox is a double shocker. Counter to common intuition,
it is possible to mix two losing games into a winning combination. This is
good news. But do not rub your hands just yet. The theory does not apply to
casino games. Learning about it all must be its own reward. On the positive
side, but still on shaky ground, Sandra
Blakeslee reported last year in NY Times that Dr. Sergei Maslov from
Brookhaven National Laboratory had shown that if an investor simultaneously
shared capital between two losing stock portfolios, capital would increase
rather than decrease. (On the downside, as of the time of writing, it was
too early to apply his model to the real stock market because of its
complexity.)” source...