‘If history repeats itself, and the
unexpected always happens, how incapable must Man be of learning from experience.’
- George Bernard Shaw
It is with some apprehension that I comment
on the work of Nassim Taleb and the idea of the Black Swan. The concept was
rigorously discussed in Taleb’s book of the same name published in 2007.
Taleb is a formidable and precise thinker
and since at present I only have a basic understanding of the nuances of the
Black Swan, I hope he will forgive me for any errors in my presentation of it.
The concept goes something like this:
Before the sighting of the first black
swan, people were convinced that all swans were white. In fact, it’s likely
that the concept of a swan being black didn’t even enter our consciousness.
According to Taleb this illustrates that
putting too much faith in what we learn from experience can be a risky
business.
“One single observation can invalidate a
general statement derived from millennia of confirmatory sightings of millions
of white swans”.
Taleb goes on to argue, and quite
convincingly, that our world is dominated by Black Swan events. In a nutshell,
we are not very good at predicting and preparing for the events which will
impact us most.
A brief look at history makes the idea of
the Black Swan particularly compelling! Think about the First World War, the
recent financial crisis, the rise of the internet…etc
The Black Swan has three main attributes:
It lies outside of our usual expectations
since no past event can alert us to its possibility.
Its impact is extreme.
After the event, we tend to invent
explanations for its occurrence which fool us into thinking it was predictable and explainable.
The concept of the Black Swan has strong
ramifications for the prediction of future events, particularly in complex
systems.
There seems a natural link here between
Black Swan events and the issue of Climate Change. I would welcome any thoughts
on how the two might be related.
For example, is Climate Change a Black Swan
or is Climate Change not as relevant as we might think since the real danger to
humanity is something we can’t even yet conceive of?
References:
The Black Swan, Nassim Nicholas Taleb,
Penguin Books, 2007
Image courtesy of ecstaticists
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