Tal Kleinu2019s interview on John Scalziu2019s Big Idea feature is a really good primer on his methodology.The Big Idea: Tal M. KleinKleinu2019s transportation idea is 1) one common understanding of how human transportation could work (the destroyed twin idea) and 2) an exercise in marketing not world-building. In other words, itu2019s a McGuffin, and the genius in the book is in describing how the McGuffin was accepted widely.This is actually a really good application of Wardley mapping. Simon Wardleyu2019s most important insight is that on a map u201cAll the components u2022 are evolving from left to right due to supply and demand competitionu201d[1]Competition consistently pushes commodities and services from the labratory to being widely available. What Wardly mapping allows you to do is take a snapshot of where your industry is at a particular moment. It allows you to orient in John Boydu2019s OODA loop.Kelin just took his snapshot 100 years in the future with a technology that is currently firmly in a Wardly u2018Genesisu2022 group.Footnotes[1] An introduction to Wardley (Value Chain) Mapping