Andy Nulman writes at Medium, “The “Forgetting Curve” I am championing though is way more self managing and practical. It would require — no, force — us to let go of old ways, preconceived notions, out-of-date processes and deeply-ingrained predispositions.” 

Forgetting isn’t always a bad thing; it’s sometimes just as important to forget, or to let go of, old ways of thinking. Or as Julia Galef writes, “Discovering you were wrong is an update, not a failure, and your worldview is a living document meant to be revised.”

See also Unlearning Is an Underrated Skill.