Probabilistic Thinking

Probabilistic thinking is essentially trying to estimate, using some tools of math and logic, the likelihood of any specific outcome coming to pass. It's one of the best tools we have to improve the accuracy of our decisions.

In a world where each moment is determined by an infinitely complex set of factors, probabilistic thinking helps us identify the most likely outcomes. The future is far from determined, and we can better navigate it by understanding the likelihood of events that could impact us.

We need to consciously add in a needed layer of probability awareness. There are three important aspects of probability that we need to integrate into our thinking to get into the ballpark and improve our chance of catching the ball.

1. Bayesian thinking

   Given that we have limited but useful information about the world and we are constantly encountering new information, we should probably take into account what we already know when we learn something new.

   It's important to remember that our prior knowledge is also a probability estimate. We can't let priors get in the way of processing new knowledge. Any new information we encounter that challenges the prior simply means the probability of that prior being true may be reduced. Eventually, some priors are replaced completely. This is an ongoing cycle of challenging and validating what we believe and what we know.

   Condition probability is similar to Bayesian. When we use historical events to predict the future, we need to be mindful of the conditions that surround those events.

2. Fat-tailed curves

   Many of us are familiar with the bell curve, known as the normal distribution. If we know we are in a bell curve situation, we can quickly identify our parameters and plan for the most likely outcomes.

   In a bell curve, the extremes are predictable. There can only be so much deviation from the mean.

   In a fat-tailed curve, there is no real cap on extreme events. The more extreme events that are possible, the longer the tails of the curve get, the higher the possibility that one of them (Black Swan Event) will occur.

   The important thing is to identify fat-tail situations (such as financial markets, pandemics, or technological disruptions) and position ourselves to survive or even benefit from the wildly unpredictable future by being the only ones thinking correctly and planning for a world we don't fully understand.

3. Asymmetries

   Because the world is volatile and unpredictable, massive events—panics, crashes, bubbles, and breakthroughs—tend to have a disproportionate impact on our lives. To handle this volatility, we must look for asymmetry (where the upside heavily outweighs the downside).

   • Seek upside optionality: Actively position yourself in situations that offer high-reward opportunities with low, controlled risks. Turn randomness and uncertainty into your friends, not your enemies.

   • Learn how to fail properly:

     1) Never take a risk that will eliminate you from the game. Avoid total ruin at all costs.

     2) Develop the personal resilience to learn from your failures and start again. No one likes to fail. But failure carries with it one huge antifragile gift: learning. In other words, trial and error carries the precious commodity of information.

As you adopt this mindset, beware of the final trap: meta-probability. This is the probability that your probability estimates themselves are actually accurate. People consistently overestimate their confidence in their probabilistic estimates. True probabilistic thinkers maintain a deep sense of intellectual humility, knowing that the map is never the territory, and the world will always retain an element of surprise.