Wednesday, March 16, 2022
Pattern Addicts
Monday, March 14, 2022
Survival of the Flexible
Thursday, June 17, 2021
Lessons Learned
Looking back far enough, there are lots of examples of extreme events (high impact, low probability). Numbers we use for risk analysis make better questions than answers, because they never include the full picture. A great book to read to give you a little bit of humility is the story of Long-Term Capital Management, titled “When Genius Fails”. It is an important book to read for those who think they have cracked the code. Thinking in “distributions” (a range of possibility) rather than simple numbers is vital. Howard Marks implores that we, “always remember the six-foot man who drowned in a river that was five-foot deep on average”. It is not just the average that matters. The statistical term is moments. You have to think in moments. How the range of possibility is made up. That includes thinking about tail risk, and what isn’t in the numbers (yet). In scenario testing, you need to plan for what could happen, not just a single path. In the same way as looking at what did happen is not enough. What could have happened? You need to plan for your plan not covering everything. With hindsight, we think we understand the world. We think the lessons we learn through mistakes mean, “if I had done it this way, this is how it would have played out.” In reality, if you had the chance again, everything would be completely different.
Tuesday, May 25, 2021
Big Picture
No one has a view of the whole picture, or the ability to process it. We do not know in advance what the correct destination is, or what our future choices will be. We make our choices based on what we already know, with a limited glimpse forward of the possible consequences of our actions. There are individuals whose choices go against the grain, but if you look at a big enough picture, prejudices and bias starts to show. Daniel Kahneman and Amos Tversky opened up the field of Behavioural Finance and the study of cognitive biases. When you look at groups and group decisions, you can get a sense of how our processes work. This doesn’t mean we aren’t individuals. But we are individuals who don’t live in isolation. Our choices are affected by the choices of those around us. They are affected by the constraints of physics, time, and our very human limits. Context is everything when grasping at the randomness, ambiguity, and complexity of wrestling with personal choices and understanding.
Thursday, October 01, 2020
Point of Focus
Some of our waves of money anxiety are memories. Both of our own experiences and those of the bubble we are born into and raised in. These thoughts that push our decisions in various directions may not even be things we are aware of. The Yoga Sutras call memory waves Smriti, and they can be mighty obstacles. Smriti are not all negative. Some generational strengths get hidden beneath dirt, waiting to be rediscovered and polished. Beneath both the positive and negative lies the permanent. The point of focus that lets us unravel all the randomness, complexity, and ambiguity. Becoming aware of our subconscious, conscious and dreams and building a daily practice around that point.
Friday, August 07, 2020
Plan for Being Wrong
Monday, March 16, 2020
Drawing Breath
Tuesday, June 12, 2018
Bad Beat
Wednesday, November 22, 2017
Organised Chaos
Wednesday, November 01, 2017
Heads or Tails
Friday, September 29, 2017
Deal
Sunday, September 17, 2017
5% Okay
Daniel Dennett's book 'Darwin's Dangerous Idea' changed my understanding of evolution. I had heard the idea in 'The Red Queen', but it hadn't sunk in. Survival of the Fittest can suggest we know in advance who the fittest is. That isn't how it works. A lot of random stuff happens. With sufficient diversity, something can survive even if almost everything doesn't. If 5% survives *and can rebuild*, then we can cope with some pretty big knocks. The Red Queen in Wonderland says, 'it takes all the running you can do, to keep in the same place'. The important thing isn't the destination, or even knowing what is going to happen. Too much is uncertain, complex, and ambiguous. We can't know. The important thing is the running. The being. The ability to cope. Always be at least 5% okay.
Monday, February 27, 2017
Alternate History
'Bernie would've won'. 'Hillary would've won'. It is comforting to think in alternate histories, 'if things had happened differently'. They didn't. Hindsight Bias is the tendency to think where we are now was more predictable than it was. There will always be someone who got it right, particularly if they make lots of predictions, and don't keep fantastic records (especially of their mistakes). To see if someone is good at making decisions, they need a track record. The problem is... a long enough track record requires lots of decisions, and lots of time, to build confidence. There is a trade-off between sufficient evidence, and the evidence being stale. A better starting point is accepting that the world is uncertain, complex and ambiguous. Build resilience, and do the best you can.
Wednesday, December 21, 2016
Possibility, Decisions and Randomness
Monday, December 12, 2016
Decision Making
Thursday, November 10, 2016
Self-Reflection
Tuesday, November 08, 2016
Being Right
Predicting something correctly only gives the illusion of 'being right'. The world is far more uncertain than that. Nate Silver of fivethirtyeight.com gives roughly equal chances to Hillary Clinton (a) Winning Solidly, (b) Winning by a large margin, and (c) a close call where Trump could win. This means he thinks Clinton is a strong favourite, but he is far more nervous than most people thinking Clinton being favourite means she will win. Daniel Kahneman points out in 'Thinking Fast and Slow' that even statisticians aren't intuitive statisticians. We are far too willing to believe things without sufficient evidence. We overestimate our control over the world. We underestimate randomness. We don't think in 'alternate possible paths'. Even if Clinton wins, I feel very uncomfortable that he got this close. I think the world will go on either way, but Brexit and the US election make it very clear that we have some soul searching to do.