"It's somewhat of a counter-intuitive idea," said Brice Kuhl, a doctoral student working in the lab of Associate Professor Anthony Wagner of the Psychology Department. "Remembering something actually has a cost for memories that are related but irrelevant." But this cost is beneficial: The brain's ability to weaken unimportant memories and experiences enables it to function more efficiently in the future, Kuhl said.
"As irrelevant memories are forgotten, the neural systems that help us remember do not need to work as hard," Wagner said. "While forgetting can be frustrating, it may represent a fundamental benefit for our ability to remember." "
It's very taoist.
The Tao that can be told is not the eternal Tao;
The name that can be named
is not the eternal name.
The nameless is the beginning of heaven and earth.
The named is the mother of ten thousand things.
Ever desireless, one can see the mystery.
Ever desiring, one can see the manifestations.
These two spring from the same source but differ in name;
this appears as darkness.
Darkness within darkness.
The gate to all mystery.
—(Gia-Fu Feng & Jane English, 1972).