~~~~~Forgetting Curve~~~~~~

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The forgetting curve illustrates the decline of memory retention in time. 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 we can remember it.
A typical graph of the forgetting curve shows 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.