>[!abstract] >The half-life of knowledge ... is the amount of time that has to elapse before half of the knowledge ... in a particular area is superseded or shown to be untrue. > >These coined terms belong to the field of quantitative analysis of science known as scientometrics [a subfield of informetrics that studies quantitative aspects of scholarly literature] (Wikipedia, 2025). >[!related] >- **North** (upstream): — >- **West** (similar): — >- **East** (different): — >- **South** (downstream): [[Academic inflation]]