Sublime

Clusters are exactly what they sound like: where notable groups of data fall.

Rensink has demonstrated that our ability to detect change in charts seems to follow a fundamental rule of sensory perception known as Weber’s law.

we access three conventions in our minds to help explain the meaning of the chart: • Like colors mean like items—the blue things go together. • Color saturation indicates higher and lower values—lighter colors have lower values than darker ones. • Categories are arranged and plotted from one extreme to another—we can read this in order from most to

Price is the maximally compressed signal of economically relevant information.

The authors designed a list of 10 elementary perceptual tasks, each one a method to represent data, and ranked them according to how accurately the human brain can detect differences and make comparisons between them.