RETROCAUSALITY: A Thought Experiment On Love And Loss

In 1833, Arthur Henry Hallam died of a cerebral hemorrhage at the age of twenty-two. Sixteen years later, Hallam’s friend Alfred, Lord Tennyson, published In Memoriam A.H.H., which records his reflections and feelings about his friend’s death.

One of the most quoted passages from the poem is often used to console people who have recently been a part of relationships that have dissolved: “‘Tis better to have loved and lost/ Than never to have loved at all.” In Retrocausality,

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