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Chunking Code

The way the chess experiment applies to programming is that we should aim to split our code into chunks that make it more readable and easier to remember.

We can achieve this by using design patterns and comments. If a function’s name is enough to describe what it does, then a comment is not necessary. But sometimes a comment is needed to increase code readability.


408 reads


Naming Variables

Naming Variables

It is pretty obvious that the names of variables matter. But oftentimes when we are in the middle of a hard problem, thinking about the name of a variable is too much for our cognitive capacity, so we just choose the first thing that comes to mind.

But we can increase our naming abilities ...


314 reads

A Chess Experiment

A Chess Experiment

In an experiment, both chess masters and average players were asked to memorize a chess board configuration, and the chess masters did way better.

That was because the experts had previously seen something similar, and they only had to store a few items in their STM, such as “Sicilian open...


491 reads

Active Elaboration

Active elaboration is the process of thinking about similar things when learning a new concept. This helps strengthen the concept in memory.

In the context of programming, you can think about similar concepts in another programming language or if the concept fits a certain paradigm, framewo...


372 reads

Understanding Code

Since code is similar to natural language, we can apply the same techniques that we use to understand text to understand a piece of code. A great way is to try to summarize the piece of code in words, which helps you understand it better and can serve as documentation.


340 reads

Using Memory To Your Advantage

Using Memory To Your Advantage

Since we can only hold a few things at once in our memory, this can slow us down while programming or while reading code. There are 2 strategies we can use.

  1. Automatization: Practice a concept so much that it becomes second nature. If you’ve been programming for a whil...


316 reads

One of the things I take away from this book is that confusion and feeling cognitively overwhelmed is fine, and is part of life and learning. Before I knew all I know about cognition, I used to get upset with myself for not being smart enough to read complicated papers...



357 reads

Choosing A Good Name

A good name must fit the natural language the variables are defined in. For example, since in English you would say “the maximum number of points”, it makes more sense to choose the name max_points over points_max.

Also, the aim should be to use 2-4 words per variable (apart from the common...


326 reads

Cognitive Processes

Cognitive Processes

We use 3 cognitive processes while programming or reading code:

  • Long-term memory (LTM) is similar to the hard drive of the brain. It stores the things that we have learned in the past, such as syntax or an algorithm.
  • Short-term memory (STM) is like the RAM or cache memory. We u...


552 reads


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