...it gave me a little plastic book with four fold-outs, maps of the city's transit system. When I wanted to go somewhere, I touched the silver-print… - Stanisław Lem

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...it gave me a little plastic book with four fold-outs, maps of the city's transit system. When I wanted to go somewhere, I touched the silver-printed name - street, level, square - and instantly on the map a circuit of all the necessary connections lit up. I could also travel by gleeder. Or by rast. Or - finally - on foot; therefore, four maps