Crowds can be wrong very fast and very loudly. Check the facts at your own speed.

Groups can reach a confident conclusion very quickly and be entirely wrong, because agreement spreads faster than checking does. Once enough people say a thing, disagreeing starts to feel socially expensive, and the volume gets mistaken for evidence. Speed and certainty have nothing to do with accuracy.

When something is everywhere and everyone is sure, wait a day before forming a view. Find the original rather than the summary of a summary. Being slightly late and right is a better position than being quick and having to quietly change your mind.