Alex's Notes

A collection of notes organized in the Zettelkästen style to foster creative thinking.

  • Tacit Knowledge

    Knowledge that can not be transferred through words alone. For example, it won’t help someone learning to ride a bike to make them read an instruction manual and expect they can flawlessly ride a bike afterward.

  • Sigmoid Function

    A mathematical function that produces an ’S’ shaped curve when plotted and is used to transform a number into a value between 0 and 1 (also -1 and 1).

  • Planck's Principle

    Scientific change doesn’t happen because because people change their mind, but because the next generation of scientists have different views.

  • Substituted Economics for Racism

    Thurgood Marshall made the comment that we have “substituted economics for race” in his dissent to the San Antonio Independent School District v.

  • Toska

    A russian word with many facets to it’s meaning that roughly translates to depression and longing, love-sickness, and unbearable feelings.

  • Structural Racism

    Racism that has been deliberately built into systems that govern and organize our lives including education, courts, laws, constitution, law enforcement, etc.

  • Pyrrhic Victory

    A victory that results in self-inflicted devastation equivalent to defeat.

  • Tyler Cowen

    Thoughtful economist from George Mason University, author, blogger, and podcast host.

  • Lindy Effect

    A theory that states, the future of an idea or technology is proportional to how old it currently is so that every additional period results in longer life expectency.

  • Hobson’s Choice

    An illusion of a choice between two inequivalent options. Hobson ran stable filled with many horses.

  • Janus-Faced

    A duality, having two different and opposing faces. Comes from the Roman god of beginnings.

  • White Rage

    A non-fiction book by Carol Anderson that describes the structural racism of the United States.

  • Juneteenth

    The day that marks proclaiming that slaves in Texas are free, two and a half years after the Emancipation Proclamation.

  • Puppy Mind

    When your mind keeps wandering out of control and fixating on things is like a puppy trying to walk on leash for the first time.

  • Personal CRM

    It’s difficult to remember every detail about people you know and who you want to build a relationships with.

  • Management Graph

    Sometimes it’s useful to work through a management challenge by drawing a graph of actions based on a particular event.

  • Slavoj Žižek

    Contemporary philosopher and leftist. See also: Masterclass: Transcendental Subjectivity, Sexual Difference, Brain Sciences (part 1, part 2) Links to this note Möbius Strip A loop with a twist in it that is non-orientable.

  • Klein Bottle

    A non-orientable surface, a theoretical shape that doesn’t actually exist in 3D space.

  • Hilbert's Problems

    A German mathematician David Hilbert published 23 unsolved problems in the field of mathematics.

  • Downward Causation

    Macro level processes altering micro level processes by changing constraints. For example, thoughts and memories alter the strength of connections in the brain via gene regulation which alters the physical constraints of ions/electrons (synapses).

  • GraphPlan

    A data structure and search algorithm for efficiently finding the shortest plan of actions between an initial state and goal state.

  • Webmentions

    Webmention is a W3C web standard for decentralized comments, reposts, and other interactions across websites.

  • Meta Game

    The game about the game. In game development, it’s often cited that it’s all about the meta game.

  • Talk Then Code

    In a blog post from Dave Cheney, open source contributor to golang, he writes that it’s always better to talk about a bug/feature/change then writing code.

  • Talk - The Secret of Psalm 46

    A talk given by Brian Moriarty, a renowned game designer/developer, that encourages listeners to dedicate themselves to the pursuit of making something awe-inspiring.

  • Essay - Learning How to Read

    An essay from Niklas Luhmann about learning to read and how there are different kinds of books that require different approaches.

  • Org-Roam

    An Emacs library that recreates Roam (software that implements a Zettelkasten-like system) using org-mode.

  • Kalman Filter

    A way of predicting what a system is going to do next when you don’t have exact information (like most real-world things).

  • Fuzzing

    The process of generating a range input values based on some constraints to fully explore a programs handling.

  • Andy Matuschak

    Researcher who focuses on how to improve the productivity of knowledge workers.