A blind old man lives in a lost way station. He intuitively determines the condition of the railway tracks, which are monitored by his son. Every month, a track meter equipped with state-of-the-art technology passes through the stop, but its readings differ from what the old man feels about the road. The son finds himself in a dilemma: which to trust more — his father's intuition or the indications of the computer? After all, the lives of hundreds of passengers depend on the right decision.

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