>[!abstract] >The forgetting curve hypothesizes the decline of memory retention in time. This curve shows how information is lost over time when there is no attempt to retain it. A related concept is the strength of memory that refers to the durability that memory traces in the brain. The stronger the memory, the longer period of time that a person is able to recall it. A typical graph of the forgetting curve purports to show that humans tend to halve their memory of newly learned knowledge in a matter of days or weeks unless they consciously review the learned material (Wikipedia, 2025). >[!related] >- **North** (upstream): — >- **West** (similar): [[Half-life of knowledge]], [[The Seven Sins of Memory]] >- **East** (different): — >- **South** (downstream): —