How Complex is the Ulam Spiral?

From Wikipedia: “The Ulam spiral, or prime spiral (in other languages also called the Ulam Cloth) is a simple method of visualizing the prime numbers that reveals the apparent tendency of certain quadratic polynomials to generate unusually large numbers of primes. It was discovered by the mathematician Stanislaw Ulam in 1963…” How complex is it?…

Index Complexity – Science Confirms Intuition

Which of these US market indices is the most complex: DJI, NASDAQ or the S&P? Surely, it is the NASDAQ because it is full of tech stocks. The DJI, being based on what we would call the real economy, is quite the opposite, more suited for investors who are less risk-hungry. The S&P clearly lies somewhere in the…

The Principle of Ignorance

  The Principle of Ignorance is a ‘corollary’ of the Principle of Fragility, which states:   Complexity  X  Uncertainty  =  Fragility   This principle states that highly complex actions (or business models) lead to situations of fragility in uncertain environments (e.g. markets). For example, a highly articulated portfolio may result to be fragile in a…