 everyone. Thank you for coming. I'd like to precise first on my presentation that I want to speak about the dangers of YouTube and vaccine issues because it's a very big topic. I will concentrate on analyzing only on French YouTubers. It's not about YouTube, it's partly on YouTube, the character of the YouTuber. This is the answer that you probably had. Okay, so why did we choose YouTube instead of Instagram or Facebook? First, because the platform has grown considerably during the last decades and it's now matched by a billion percent in the world everywhere at any time, not really everywhere, but it's not a subject. It's also because personally, I haven't watched TV for ages. I spend a lot of time on my computer and so I watch YouTube where you can find everything you look for. You can find recipes, lifetimes, advice, etc. So this is something I found very interesting. Another reason is because it's a homemade video and then you can do it yourself popularization. In this presentation, I will be showing you five points about how YouTubers can be efficient catalysts for science popularization. This is the five points. The first step before going any further is to be original. Basically, YouTube doesn't or rarely use the proper name in the case of scientific channels, but one that refers to the things they choose. For example, New Miss Decay is specializing in history of languages. They have to select the way they will be addressing to their public straight to camera and so showcase their own person, the voice of a narration or character explaining the contents. Maybe you know Extracuriy or Yusuf, they are American YouTubers and they use characters. Secondly, they don't have to own the legitimate background. So I will talk about this later, but they are not historians or archaeologists. The second point is choosing a strategy, an angle, to develop the field and to get the attention of the audience. Using catchy and catchy anecdotes or very well-known references like movies, comparability of fiction, it's very, using famous references like India Jones or Game of Thrones, it's very speaking to the audience. And yeah, this last video with India Jones, are mainly focused to demonstrate that India Jones and Lara Croft are more robust than other archaeologists. The third point I want to present, it's about having a community, but what is a community? YouTube has nothing without a community, this is one of the most important points here. The whole point of this community is based on Web 2.0, the participatory part of every social media. The issue is to create a key community on the science field. When you look at YouTube communities in detail, one point is coming out of the surface. Most of the channels are based on entertaining content. The difficult part here is to interest people to science-based channels with small parts of entertaining content. As soon as the idea is original enough, a community starts to emerge around the YouTuber who has created it. Consequently, the community is formed by all people who subscribe to the channel. They can be active like posting comments, proposing new subjects, reacting to the channels in video, etc. or completely passive. The fourth point is to have a scientific recognition. Another difficult point because most of YouTubers who make science popularization aren't researchers. Often they just people who are interested in science. As scientific sources are numerous and available to almost everyone with the full internet access, these people are in a position to create correct content instead of scientific accuracy. I know they do, they do it well. Scientific institutions are sometimes rewarding with the collaboration. We're talking here about museums, scientific channels like Arty or Akai that found the providing contents on YouTube and wanted to use them for projects. This is actually an exchange of legitimacy between YouTuber profane and science-scientific institutions. The last point is the level of impact that can have a YouTuber on its content. Nowadays, we sometimes call YouTubers or content creators of other platforms like Instagram influences. As YouTube platform is growing exponentially, they increase the level of impact on people and institutions. Some of them enlarge the content's production to books, festivals, lectures, TV shows to ask questions on how they can use their position to be more accurate about science popularization. So, oh yes, sorry. This is a book from the Tabenez, one of the most famous history YouTuber in France. And this is a PhD and she's talking about the thesis. So to conclude, YouTuber can be considered as actor of science. It has a role to play on how interest people to reach and how we knew all institutions, museums to help them to impact people differently. So this paper meant to show how important YouTube had become and professionals started to use them more and more.