A few weeks ago, Morgan Housel, the author of The Psychology of Money, was reminiscing with his wife about their twenties. “Those were the best years,” he said. “We had a lake view from our apartment, no kids, slept in every day.” His wife looked at him and replied, “Are you kidding? You were more anxious back then than at any other time. Maybe even a little depressed.”
Housel paused. She was right. He had spent those years worrying about work, about getting fired, about his career falling apart. It was just that none of those fears ever came true. So looking back, all he saw was the calm after the storm.
That’s the thing about nostalgia. We don’t remember the past as it was—we remember the past as it turned out.
There’s a Russian proverb that Housel quoted in his article: “The past is more unpredictable than the future.” At first that sounds backward. How can the past be unpredictable? It already happened. But the point is that when we look back, we slap a thick layer of emotional filter on top of what actually occurred. And that filter is much heavier than the one we use when we try to imagine the future.
Psychologists have a name for this: the fading affect bias. In simple terms, positive emotions stay fresh in our memory, while negative emotions fade away over time, sometimes to the point of disappearing completely.
In one classic study, psychologist Terence Mitchell tracked a group of college students before, during, and after a vacation trip. He asked them to rate how much they expected to enjoy the trip beforehand, how much they were actually enjoying it in real time, and how much they enjoyed it in retrospect. The results: the real-time score was the lowest of the three. Why? Because real life is full of friction—waiting in line, missing the bus, arguing with a travel buddy. We forget all that once we get home and look at the photos.
So when we say “college was the best four years of my life,” we conveniently delete the all-nighters, the anxiety about graduation, the roommate conflicts, the crying in the library bathroom at 2 a.m. The memory keeps only the campus sunlight and the laughter.
But here’s the twist: this bias isn’t just a harmless quirk. It shapes how we make decisions today. If you believe the past was purely golden, you might be afraid to change your current situation because you think the best is already behind you. You might avoid risk, reject new opportunities, and cling to a nostalgia that never really existed.
Housel’s insight offers a more useful way to think about it. Instead of longing for a past that never was, we can recognize that the same process is happening right now. The present moment feels heavy because we are living through its friction—the uncertainty, the small frustrations, the fear of the unknown. But in ten years, those will fade, and what remains will be the things that actually mattered.
So the next time you catch yourself sighing, “Things were so much better back then,” ask yourself: better for whom? You now, or you then? The past wasn’t better—it’s just that your brain has learned to selectively delete the pain.
That’s a superpower, if you know how to use it. But if you don’t, it can become a trap. The past is indeed more unpredictable than the future—because we keep rewriting it without noticing.