Black Swans and White Ravens

I am considering reading the book "The Black Swan: The Impact of the Highly Improbable" by Nassim Nicholas Taleb soon. An alternative metaphor for "black swan" is "white raven". We should use "white raven" to suggest the highly improbable likelihood of Ravencoin going to the moon. Let's hope for a White Raven Event! This book is popular with investors because it concerns risk management that allows for black swan events.