The second phone call and inspector symbolize the cycle of history, showing how the older generation failed to learn from the first world war and repeated their mistakes, leading to the second. Priestley urges the younger generation, especially Sheila, to break this cycle. In 1912, Sheila, as a woman with no autonomy or vote, was powerless to change her world. However, by 1945, the opportunities for change were clear, with women now having a voice and the chance to shape society’s future.