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Engineering
8 min read·Dec 2025

Temporal Supersession: Tracking Facts That Change Over Time

"My meeting with Sarah is on Thursday" becomes stale the moment the meeting passes. Here's how Hypermemory's fact graph tracks current state vs. historical state without explicit updates.

Temporal Supersession: Tracking Facts That Change Over Time

"My meeting with Sarah is on Thursday" becomes stale the moment the meeting passes. Here's how Hypermemory's fact graph tracks current state vs. historical state without explicit updates.

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M

Marcus

Hypermemory · Support