Game of Life is a two-dimensional cellular automaton invented by John Corway.

The Dunning–Kruger effect is a cognitive bias whereby people with low ability at a task overestimate their ability. Some researchers also include in their definition the opposite effect for high performers: their tendency to underestimate their skills. The Dunning–Kruger effect is usually measured by comparing self-assessment with objective performance. For example, the participants in a study may be asked to complete a quiz and then estimate how well they did. This subjective assessment is then compared with how well they actually did. This can happen either in relative or in absolute terms, i.e., in comparison with one's peer group as the percentage of peers outperformed or in comparison with objective standards as the number of questions answered correctly. The Dunning–Kruger effect appears in both cases but is more pronounced in relative terms: the bottom quartile of performers tend to see themselves as being part of the top two quartiles. The initial study was published by David Dunning and Justin Kruger in 1999. It focuses on logical reasoning, grammar, and social skills. Since then, various other studies have been conducted across a wide range of tasks. These include skills from fields such as business, politics, medicine, driving, aviation, spatial memory, exams in school, and literacy.

The Uncrackable Cipher

One-time pad (Vernam Cipher)

The people always wonder, is there any way to design uncrackable cipher? Short answer is yes. But in practice, there is no way to use them.

The half-life of caffeine can be used to calculate how long coffee will affect you after you drink some. Knowing this can help you adjust your coffee intake in order to improve your sleep schedule, or help you determine how often you should drink caffeine in order to maintain a stable level of caffeine through the day.

The biological half-life of caffeine in typical adults is between 5 to 6 hours. This means if you had 100 grams of caffeine, you would have around 50 grams after 5 hours.

Keep in mind that after the amount becomes very small, it is likely that the body will dispose of it all at once rather than halving the amount forever.

SerenityOS is a Unix-like operating system developed by Andreas Kling and the SerenityOS community.

Development videos

One of the interesting parts of SerenityOS is the YouTube channel of the creator.

Creole (or WikiCreole) is a lightweight markup language that aims to standardize the Wiki syntax commonly used across the different Wiki systems. It is therefore expected that a document written with the Creole syntax should render correctly in most Wiki engines.

More information can be found on their official website, wikicreole.