• Adjacent User Theory

    Funnel metrics tend to decline with each successive cohorts as a company grows and saturates segments that have strong product market fit.

  • Memex Device

    A fictional device from the essay As We May Think, written in 1945 by Vannevar Bush, which both stores knowledge (books, notes, annotations, conversations) and connections between them allowing someone to follow trails of associated knowledge.

  • Conway's Law

    A company tends to design systems that mirror their communication structure e.

  • 85% Rule

    When doing an activity that requires peak performance, strive for 85% of what you believe is your best.

  • Sword of Damocles

    A parable of where Damocles who, after exulting how nice it must be to be king was offered to switch places with the king Dionysius for a day.

  • Flesch Reading Ease Test

    Determines the grade level required to read a text based on a score of average sentence length and average syllables per word.

  • Rust

    A statically typed programming language which enforces writing code that is free from certain memory errors (use after free, dangling pointers).

  • Melissa Dell

    Economist and professor at Harvard, winner of the John Bates Clark Medal.

  • Eigenvector Goals

    Setting a goal around a metric that is the result of the output of other metrics and goals being driven.

  • Tim Ferris

    Podcast host and author who works with famous/impressive people from various fields to discuss how they work, how they think, and how you might learn from their practice.

  • Felt Sense

    Something that can be perceived that is not based on a physical sensation such as intuiting or a gut feeling.

  • Atomic Habits

    A book about building systems of small habits that compound over time.

  • Software Architectural Pattern

    A way of organizing code and abstracting concepts to build a software system often with the goals of robustness, reliability, extensibility, performance, and correctness.

  • Event Sourcing

    A method for representing state of a system using immutable events over time that can be aggregated to derive state at a particular moment.

  • ECS

    An entity component system (ECS) model is a software architectural pattern way of organizing a program that is oriented around and is easily extensible often used in games.

  • In-Group Favoritism

    The tendency to give preferential treatment to those belonging to the one’s in-group over one’s out-group.