Mag World is a podcast about developing fluency in logarithmetic through a simplified notation for numbers that emphasizes magnitude. It aims to build an intuitive sense of scale, going beyond “bigger” or “smaller” to show how much bigger or smaller one quantity is. The show also explores what each level of scale is like.
Episodes
Mag Cosmos
Saul and Mike talk about Archimedes, the size of the Universe, and the speed of light.
Mag Perception
Decibels and frequencies and hot peppers. Making Fech a thing.
Mag Matter
Mass, mining, precious metals, and the periodic table.
Mag Money
Saul and Mike discuss what each mag level of wealth feels like, how the cost of debt changes between levels, and how long it would take a wealth tax to materially affect a billionaire.
Mag Homelessness
Saul and Mike talk with William Towey of the King County Regional Homelessness Authority about the magnitude of homelessness in Seattle, from the first recorded homeless settler in 1854, to 16,000 counted homeless people in 2024.
Mag Population
Saul and Mike explore the magnitudes of various populations of creatures on earth, from humans to buffalo to chickens to roundworms to bacteria.
Mag Water
Saul and Mike talk about water, from the Moldau to the Niagara to the Amazon, and glaciers, icebergs, car washes, and hamburgers.
Mag Computer
Saul and Mike climb the mag scale of computing, using RAM as a proxy for compute power, from the Apollo guidance computer and the Apple II up to today's machines, and what each mag of memory made possible.
Mag Energy
Saul and Mike tally up how much energy Earth actually has -- solar, fossil, nuclear, wind, geothermal, tidal -- and work out whether any of it is enough to get a ship to Tau Ceti, with Project Hail Mary's astrophage as the yardstick.
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