In corporate and government bureaucracies, the standard method for making a presentation is to talk about a list of points organized onto slides projected up on the wall. For many years, overhead projectors lit up transparencies, and slide projectors showed high-resolution 35mm slides. Now "slideware" computer programs for presentations are nearly everywhere. Early in the 21st century, several hundred million copies of Microsoft PowerPoint were turning out trillions of slides each year.
Alas, slideware often reduces the analytical quality of presentations. In particular, the popular PowerPoint templates (ready-made designs) usually weaken verbal and spatial reasoning, and almost always corrupt statistical analysis. What is the problem with PowerPoint? And how can we improve our presentations?
Arturo Soria y Mata, who proposed a linear streetcar suburb for Madrid in 1882 and managed to build something like three miles’ worth of an intended thirty. Likewise, the project by Edgar Chambless for Roadtown, published in 1910, depicted an infinitely long, two-room-wide building atop three levels of underground rail lines for express, local, and freight traffic. In the late 1920s, N. A. Miliutin proposed a Soviet Union–spanning linear plan that—following Soria y Mata’s rhetoric—would have solved the old Marxian chestnut of city/country contradiction at a stroke. Le Corbusier’s Algiers scheme of 1933—a highway-topped fourteen-story building meant to stretch miles along the Mediterranean and house 180,000 people—was surely the most immediate precursor of Rudolph’s “City Corridor.”