In a world where misinformation travels fast, the race to correct the record is more urgent than ever. But a new study published in the Journal of Communication suggests that when it comes to fact-checking, the biggest enemy isn't just the lie itself—it’s the clock.

A recent study by Prof. Hyunjin (Jin) Song and UCLA Ph.D. student Je Hoon Chae, together with Dr. Tim Groeling at UCLA, dives into a frustrating reality of modern life: even when a fact-check successfully changes someone’s mind, that "win" for the truth is often temporary. By conducting two massive experiments involving nearly 7,000 participants, researchers tracked exactly how long the impact of a correction lasts.

The study found that while people are generally good at updating their beliefs immediately after seeing a fact-check, the effect starts to wither almost instantly. Within just two weeks, most of the progress made by the correction had faded away. This creates a significant challenge for journalists and educators. If a fact-check only works for a few days, how can we fight misinformation that persists for years?

However, the news isn't all bad. The researchers discovered a surprisingly low-tech way to keep the truth alive in people's minds: Accuracy Reminders.

The study showed that the problem isn't necessarily that people forget the truth, but rather that it stops being "top of mind" when they are browsing the web. By introducing simple prompts—reminders to think about accuracy or quick "nudges" back to the facts—the durability of the fact-check was significantly extended.

This research highlights why we often find ourselves falling back into old (and incorrect) beliefs even after being "corrected." Our brains are wired for speed, not always for long-term storage of every debunked claim we see on social media. For the people building the platforms we use every day, the takeaway is clear: fighting "fake news" isn't a one-and-done task. To help the truth stick, we don't just need better fact-checks; we need smarter ways to remind people of the facts exactly when they need them most.

In the end, keeping the truth alive is less about a single explosion of information and more about keeping the "fire" of accuracy burning over the long haul.

Chae, J. H., Groeling, T., & Song, H. (2025). Time is the fire in which message effects burn: Decay and sustenance of correction effects over time. Journal of Communication. Advance online publication. https://doi.org/10.1093/joc/jqaf030