• Stress and Anxiety Are Cumulative

    While it might seem like being stressed or anxious is binary, it’s more like a sum. Each stimulus accumulates even if they appear separate and unconnected e.g. personal vs work stress.

    The accumulation raises the temperature of your emotional thermometer and each additional stimulus feels larger than it is making it difficult to do anything. That’s why it’s surprising that something seemingly so small feels outrageously difficult or causes you to ‘snap’.


  • Signaling as a Service

    Signaling is often the underlying motivation for our behaviors. We make visible our values to both the in-group and out-groups in ways such as buying a luxury automobile (to signal wealth) or posting a flattering image of ourselves on vacation. Products and services can be viewed as selling signaling as the underlying value to users. For example Fortnite, which is free to play, sells costumes and emotes which have no affect the ability to win the game and are purely sold as a form of signaling.

    Read the blog post

    See also:


  • Robinhood Momentum Algorithm

    Robinhood is linked to recent events like the stock price of Hertz skyrocketing despite going bankrupt or Kodak jumping 1,000% on news of a pivot to drug manufacturing. By displaying stocks other users are buying/have bought (a simple way of consumerizing stock picking), they’ve inadvertently created a ‘momentum algorithm’ that, simply by displaying popularity more people buy and drive the price up.

    See also:

    • Money Stuff that suggests how COVID-19 has created millions of bored people looking for entertainment by betting on stocks

  • Identity Is a Powerful Motivator for Behaviors

    Behavioral change, such as forming a new habit, can be motivated by how it reflects your identity (both positively and negatively)–we do things that provide evidence for who we are.

    For example, identifying with being a healthy person means the actions you take will be more likely to reflect that. It’s not that you like to workout it’s that you are a fit person and that’s what fit people do.

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  • Synthesis Is a Fundamental Skill of Management

    A manager is constantly sythesizing information into useful direction and feedback to the team.

    For example, in performance management you are taking a body of work and extracting useful feedback. In team discussions and meetings, you are fascilitating discussions by making sure the important information is distilled and follow-up actions happen.

    Without the ability to synthesize vast amounts of disparate information the team can feel unfocused or unclear in what they need to do to be successful.

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  • PokΓ©mon Go Summer

    The platonic ideal of technology and human interaction occurred during the summer of 2016 when everyone was playing PokΓ©mon Go. As a location-based game, people were suddenly gathering in the same places with something in common to talk about and do together.


  • Operant Conditioning

    Learning through association of a behavior with rewards and punishment. We tend to do more of the things that make us feel good rather than feel bad.

    See also:

    • Atomic Habits which talks about designing for establishing good habits and stopping bad habits as a way of piggybacking off of operant conditioning (although I don’t think the term is ever mentioned in the book).

  • Gravity Model of Trade

    Trade flows can be predicted based on the proximity of two places and size of their respective economies. While not very detailed, it has shown to be very successful in it’s predictions that it is still used today, more than 50 years after it was introduced.

    Distance makes some intuitive sense, if trade costs anything, merchants would aim to reduce that cost. But, what underlies that is also potentially cultural similarities and language for doing business.

    See also:

    • A-Star algorithm which computes the shortest path between two points based on a cost function. (Could this be used along with the gravity equation as a predictor of trade routes?)

  • Fermi Paradox and Pessimism of Energy Economics

    A possible explanation to the Fermi Paradox can be found in energy economics. As a civilization progresses the cost of producing energy decreases which also reduces the cost of a world-ending event such as nuclear war. The pessimistic view is that civilizations eventually reach a point where they destroy themselves and therefore never make it to the point where they can achieve interplanetary communication or contact.

    See also:


  • Two's Complement

    A common way of representing signed integers (can be positive or negative) in computers. You can invert the sign of any number (except 0) by taking the complement of the number and adding 1.

    For example using 4 bits:

    • 1011 is the binary representation of -5
    • The complement is 0100 (flip 1s to 0 and 0 to 1)
    • Adding 1 to the complement is 0101
    • 0101 is the binary representation of 5

  • Sketch Storm

    A team explores the solution space of a set of pre-prepared problem statements or scenarios by sketching out different approaches that solve it. This helps to kick start the product discovery phase by exploring many different solutions simultaneously with minimal effort. Sometimes this reveals new problems or constraints that have not been uncovered yet.


  • Zoom Fatigue

    Being on video conference calls repeatedly is exhausting. This phenomena is believed to be caused by the brain working overtime because we can tell the other person is an imperfect projection and reading body language is difficult.

    This became into the national consciousness during COVID-19, where much of the workforce was forced to work from home and use video conference tools to communicate.


  • Meta Habit

    A habit that helps make acquiring new habits easier. For example, the habit of removing the option of not doing something you need to do decreases the mental energy to take the desired action and thereby create the habit.

    This is related to the ‘make it easy’ concept in Atomic Habits, but rather than designing changes to per habit, it’s an overall discipline which makes everything easier.


  • Growing Startups Are a Microcosm of an Economy

    Startups display many properties of a full blown economy sped up many by many times. You could study many phenomena much faster by watching a fast growing startup from the inside. In governance, how control structures change from flat democratic organization to hierarchical. Stagnation as the number of people increases and efficiency decreases.


  • The Passenger Pigeon Saved the Bison

    Prior to the 1900s, people did not believe an animal could go extinct–they assumed nature was endless. It wasn’t until the passenger pigeon disappeared that the U.S. public became aware and top of mind. When President Theodore Roosevelt complained that he spent months without seeing a bison during his many hunting expeditions it kicked off an unheard of conservation movement to prevent the extinction of bison. It’s believed this was only made possible because of the public recognition of the passenger pigeon’s demise that the movement was made possible.


  • Straussian Reading

    Refers to the Leo Strauss notion that serious writers communicate ideas through many layers of meaning and abstraction which simultaneously protects the author from the ruling regime and attracts the right readers. A ‘Straussian reading’ or interpretation is extracting the hidden subtext and stating it openly.

    See also:

    • Learning how to read which discusses multi-layer recursion to understand certain texts.
    • Tyler Cowen often refers to this when asking interviewees for a more full interpretation of a piece of writing that includes the context of the author and environment in which it was written.