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The Origin and Evolution of CAPTCHAs
This chapter delves into the origin and evolution of CAPTCHAs, discussing its introduction in 2003 and the frustration it brings to users. It explores the concept of Turing tests, the shift from meaningless word problems to meaningful tasks, and the use of AI problems as tests. The chapter also highlights the impact of CAPTCHAs on digitizing text, preserving books, and solving hard AI problems.