The Forgetting Curve

How fast you lose what you just learned

Here's a humbling truth about your memory: within one hour of learning something new, you've already lost more than half of it. Within 24 hours, roughly 70% is gone. This steep initial drop, the forgetting curve, was first documented in the 1880s and has been replicated many times since. The good news? Strategic review at the right intervals can flatten the curve dramatically.