The Black swan is indeed a rare and beautiful bird. If you have ever seen one, you understand the magnificence of this creature; the swan that shouldn't exist, yet it does!
It was believed in Europe for many years that the Black swan did not exist. Roman poet Juvenal declared 2000 years ago that swans are invariably white. Like purple cows and flying pigs, the Black swan was a symbol of what was impossible. In medieval Europe, unicorns had more credibility.
Dutch navigator Willem de Vlamingh, by finding Black swans in Western Australia in 1697, showed how risky it is to declare something impossible!
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