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Photograph: Jacobs Stock Photography/Getty Images (posed by model)
The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts
Whatever happened to hitchhiking? You rarely here of people thumbing a lift any more. Is the world more dangerous or just meaner? Ann Langdon, Essex
Post your answers (and new questions) below or send them to [email protected]. A selection will be published next Sunday.
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