The estimated interval in which an edge loses half its value against an objective and reference point. It’s a tradecraft framework for assessing how long intel, position, capability, or leverage remains advantageous.![]()
// An advantage requires continuing assessment of its remaining value, the conditions sustaining it, and the time available to convert it into a result.
+ Covert Operative Kit [ ] gear shop »»
[OPTICS : CIA Special Activities Center]


