Spitznagel's self-described investment strategy is focused on risk mitigation in portfolio construction, and is intended to allow his clients to take more
systematic risk. Spitznagel is dismissive of
Modern Portfolio Theory, and specifically its emphasis on
correlations and
mean-
variance (or
Sharpe ratios), and skeptic of market forecasts, as well as the "
2000s commodities boom". He detailed in an investor letter how "mathematically, it is the rare big loss, not the frequent small losses, that matters most to long-run compounding," and called the Swiss mathematician and physicist
Daniel Bernoulli "Universa's
Patron Saint". Spitznagel wrote a book in 2013 titled
The Dao of Capital: Austrian Investing in a Distorted World about the
Austrian School of economics and its ostensible application to investing.
Paul Tudor Jones said of Spitznagel's book that it "shows how a seemingly difficult immediate loss becomes an advantageous intermediate step for greater future gain, and thus why we must become 'patient now and strategically impatient later'." ==Political and economic views==