This document discusses the concept of the "ladder of inference", which describes the cognitive process by which people draw conclusions from available data. It explains that people tend to draw inferences unconsciously and automatically based on their own mental models, experiences, and biases. This can lead to inaccurate conclusions if higher rungs of the ladder such as assumptions and beliefs are not checked consciously. The ladder of inference is presented as a tool to increase awareness of one's own thinking and perspective, improve communication, and make informed decisions.