That’s because if people open a capsule on its specified date, Jarvis argued, the intervening generations will inevitably lose out on potential historical information. The author also expressed doubts regarding the effectiveness of capsules in preserving artifacts. The conditions the containers are exposed to underground, coupled with their tendency to get lost, are the main reasons for this, Jarvis wrote.
But that being said, there are notable cases where time capsule discoveries were beneficial. In 2018, for instance, the North Sydney Historical Society found a time capsule in the ruins of the now-demolished Thompson Middle School in Nova Scotia. The organization’s members actually unearthed the time capsule after having heard local rumors about its existence.