Did any time capsule makers want future readers to write back, and did they?

Research question: Which time capsules were designed so that later readers could write back to the people who sealed them, and did any of them get a reply?

The verified facts describe only one time capsule, and none identify one designed so later readers could write back to its sealers ¹². The Long Beach capsule, buried in 1976, held student letters that five former students read aloud when it was opened in 2026 ¹. Those letters described life in 1976 and predicted 2026 rather than serving as replies to later readers ². The records show no reply from later readers to any of the letters, and the newest fact, dated July 22, 2026, is about three months old as of October 2026 ¹²³.

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