Former railroad clients should look at that bar chart and say “Marc was right.” Because I came across the graphic above recently and thought to myself, “Finally, I am validated.”
The bar chart represents “The Forgetting Curve” developed through the groundbreaking research of a 19th Century psychologist named Hermann Ebbinghaus. It shows the dramatic rate at which our memories fade after being introduced to new information that isn’t frequently used afterward. Within an hour, you won’t remember half of what you were told. Within a day, two-thirds will have faded. After a week? Forget about it, literally.