once · temporal
a change that happened a single time in the previous
Examples
- The Chicxulub impact altered Earth's climate within hours, ending the Cretaceous period 66 million years ago. geology
- The 2003 Northeast blackout began with a single relay failure in Ohio, cascading to 55 million people. engineering
- The Bitcoin network adjusted its difficulty for the first time on January 9, 2009, after block 24. computing
Emergence
through: a single change occurs before now
- singular past occurrence
- completed change instance
- temporally bounded event
Chain to foundations
Neighborhood
Concepts that depend on this one above; what it is built from below.
Used by (2)
Relations
| contrasts-with | previous.temporal | is-a |