Last Updated
：2025/11/26
closed time loop
Noun
Japanese Meaning
（SFにおける用語）ある出来事の因果関係が循環し、過去にタイムトラベルすることで既に定まった歴史を再現する時間的ループ。
（ plural ）
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(science fiction) A chain of events in which someone or something time travels to the past as a means to fulfill their role in the history exactly as it already happened, thus implying impossibility to change the past.
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closed time loop
Scientists debating the paradox realized that the rescue mission itself had been launched because of a closed time loop, making any attempt to change the past futile.
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Scientists debating the paradox realized that the rescue mission itself had been launched because of a closed time loop, making any attempt to change the past futile.
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