This is a collection of the quotes I saved while reading the Extreme ownership by Jocko Willink, in 2024-2025 to help me to be a better tech lead in our gamedev firm.

• A003: “I discovered that it was far more effective to focus their efforts not on the days to come or the far-distant finish line they couldn’t yet see, but instead on a physical goal immediately in front of them—the beach marker, landmark, or road sign a hundred yards ahead. If we could execute with a monumental effort just to reach an immediate goal that everyone could see, we could then continue to the next visually attainable goal and then the next.”

Twenty thousand copies sold on Steam. That’s Backrooms Break - my third indie game, and by far my most successful. My name is Jan Jileček, and I built it as a solo developer over two years of nights and weekends.

But this isn’t just a devlog. This is the story of what it actually takes to ship a successful indie game.

In the eighth volume of his Collected Works, The Structure and Dynamics of the Psyche, Carl Jung explored the boundaries between the psyche and the physical world. He wasn’t merely interested in symbols - he was interested in how those symbols manifested in reality. In his famous “Astrological Experiment,” Jung examined the horoscopes of married couples to see if the stars whispered secrets about human connection.

Jung wrote that the birth-chart “gives a picture first of the psychic and then of the physical constitution of the individual,” arguing that it represents “a system of original and fundamental qualities in a person’s character.” Central to his thinking were the 12 Jungian archetypes - universal patterns of the psyche that shape how we love, attach, and form lasting bonds. He argued that marriage, as a fundamental human institution, should theoretically reflect these psychic archetypes. Jung’s own study involved only 483 pairs. Today, I have scaled that inquiry to 16,861 public figure marriages extracted from Wikidata.

This is my personal view, based on years of following the happenings in the scientific world, connected with my (ex-) eastern philosophy views, personal psychedelic experiences and personal theory, one that I cannot prove. Yet, I felt this way for years and wanted to express it, somewhere. I have been a Jungian since 2017. That is when my journey really began. Back then I wrote my first article, and also bought a book about the Tao. Later I discovered Jungian psychology, and what Tao Te Ting only outlined as something that could not be explained or named, Jung explained in DEPTH as the Collective Unconscious.

Collective Unconscious was real, concrete thing, according to Jung. He considered it a living entity, that exists outside ourselves, living in the Universe. In my pantheistic view, the concept is the same as God. I cannot go into depth about the Collective Unconscious, for that are my other articles, but I want to focus on one concept from it — Synchronicity.

When I read a book, I often underline useful passages. Later when I am finished reading the book, I compile a summary of these important lines.

Vítejte ve druhé části seriálu o tom, jak vytvořit hru Pac-Man v Pythonu. V minulém dílejsme si představili základní principy hry Pac-Man a navrhli si její datovou strukturu. V tomto díle se budeme zabývat implementací několika důležitých prvků hry, jako je například kolize s duchy, počítání score, umělá inteligence duchů, power-upy, koncové stavy hry, animace a textury.

Pac-Man is a classic platform game that is probably known by everyone today. The name “Pac-Man” comes from the Japanese word “paku,” which means opening and closing the mouth. The creator, Toru Iwatani, was inspired by a Japanese story about a creature that protects children from monsters by eating them. In creating the game, he used key words from the story as a springboard, and the verb “eat” became the foundation of everything.

Pacman je kultovní plošinovka, kterou zná pravděpodobně každý. Jméno “Pac-man” pochází z japonského slova “paku”, které označuje otevírání a zavírání úst. Tvůrce Toru Iwatani se inspiroval u japonské pohádky o bytosti, která ochraňuje děti před monstry tím, že monstra požírá. Při tvorbě hry použil jako odrazový můstek klíčová slova z příběhu, a sloveso “jíst” se stalo základem všeho.

Kognitivní zkreslení jsou naučená pravidla vnímání a chování. V podstatě jsou to mentální zkratky, které nevědomě používáme. Při práci nás tyto skryté předsudky mohou nemile překvapit, proto je nutné si uvědomovat, jak fungují, a vědomě jim předcházet. V tomto článku se podíváme na 5 hlavních zkreslení a na užitečné techniky, které lze použít pro jejich minimalizaci.