Part of the problem is that true rumors can be corroborated quickly, but false rumors take time to debunk. The delay between introduction and debunking allows the false rumor to spread.
True rumours tend to be resolved faster than false rumours. Our
study shows a significant difference in terms of the time it takes before true and false rumours are resolved respectively. While most true rumours are corroborated within 2 hours of the source tweet that introduces them, false rumours tend to take about 14 hours before they are debunked. This observation aligns with common sense and buttresses earlier conjectures according to which proving
that a fact is not accurate is far more difficult than proving it is true [Saunders,1984]; providing counter-evidence that disproves a statement is indeed more