Sommaire
Twitter coverage of the crowd movement in Rue Neuve (Brussels)

I. The story
The first tweet about the crowd movement came from a Brussels journalist, who announced only that there had been a crowd movement (unlike Juan-les-Pins, where an attack was announced).


















II. Analysis
- Analysis of rumour vs. denial
- Rumour
- Denial
- Comments
- Questioning

We can see that rumour invalidation occurs fairly early (you have to add an hour for real hours), but thatit takes more than 1 hour 45 minutes before the rumour is defeated. And there are still reminders of rumours in the form of retweets that pop up afterwards. If we take the retweets out of the equation, we see that the rumour is defeated much more quickly. (30 minutes) It's also worth noting that the curve for questions still largely follows the curve for denials, a sign that despite the denials, there are still people in doubt and waiting for answers.


III. Conclusion
We can take elements from our analysis of the Juan-les-Pins crowd movement:- On Twitter, there is always some truth behind the rumour. A firecracker, a crowd movement, a gathering of police officers, and so on. In this case, that was the case because there were a lot of eyewitness accounts and something was actually happening.
- The rumour was then spread by people who were not there. Questions from people who weren't there, wondering what was going on, "Twitter journalists", and prevention messages urging people to stay at home. Here again, relatives not on site asking for information on Twitter, questions spreading rumours, and so on. We've also had "Twitter info" accounts that simply relay that something is happening, but without giving any information, because they're not on site.
- The rumour will then always have a modification, a diversion. A firecracker becomes an explosion, then a shoot-out. A gathering of CRS becomes a hostage-taking, etc. Similarly, we have heard of shootings, a bomb, a mad killer, etc. The rumour is confirmed by witnesses.
- The rumour is confirmed by outside evidence. (Police on the scene, helicopter in the sky, shop closing, etc.).
- Once the rumour has been disproved, it quickly dies out. In fact, it does die out. But 1 hour 45 minutes later if we take into account retweets and only 30 minutes for normal tweets. This shows the logic of the timeline and the communitisation of information. Saying that you are a media outlet or an authority is not enough to put a stop to rumours.
- Disproving a rumour is always more visible than the rumour itself. This is because those involved in disproving the rumour always have a higher profile (media, authorities) than those spreading the rumour. However, the problem is that this visibility does not always reach the actors who are in possession of false information. This is because the communities of actors are different.