Steven Johnson: How the "ghost map" helped end a killer disease | TED Talk | TED.com

Steven Johnson: How the "ghost map" helped end a killer disease | TED Talk | TED.com

Author Steven Johnson takes us on a 10-minute tour of The Ghost Map, his book about a cholera outbreak in 1854 London and the impact it had on science, cities and modern society.

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Steven Johnson

Writer

Steven Berlin Johnson examines the intersection of science, technology and personal experience. Full bio