Notes by Lex

Permanent notes (also known as Evergreen notes) capture a single "atomic" idea. They also include links to related ideas. In the Zettelkasten system, they're created …

Survivorship Bias is a common error of thinking where we arrive at false conclusions by only examining success cases.

For example, on one of my …

Charlies Munger advocates for building a "broad theoretical toolbox" that he calls a Latticework of Mental Models. The idea is to accumulate concepts from a …

Teaching the "whole game" uses the metaphor of baseball to highlight how common approaches to teaching are the equivalent of doing batting practice without ever …

In Zettelkasten, the topic overview is a note that links to key Permanent Notesithin a topic. It is linked to via the index and …

A technique used to evalute how different the test set is to the training set, commonly used in Kaggle competitions to assess likelihood of a …

A single datapoint in a 3d-grid, the word is a combination of "volume" and "pixel"

Some assume that the path to promotion is doing their current job well. However, promotion is about proving that you're capable of another job.

Hacker …

Our brains are naturally drawn to information that agrees with our world view. We end up surrounded by people that think like us and consume …

According to Ahrens, who cites Doyle and Zakrajsek, breaks are not only opportunities for the brain to recover, they are essential for learning. They give …