Foundation series: the interface of Hari Seldon's plan!

Love Matt Webb's deep dive into the user interface of Hari Seldon's Plan from the Foundation series.

He depressed a lever on his side of the desk and the room was in darkness. But only for a moment, since with a gradually livening flush, the two long walls of the room glowed to life. First, a pearly white, unrelieved, then a trace of faint darkness here and there, and finally, the fine neatly printed equations in black, with an occasional red hairline that wavered through the darker forest like a staggering rillet.