(only English article I found, sorry it's shit)
Mélenchon will do a double meeting on February 5th. The first one will be in Lyon, the second one in Paris. But he will not be physically in Paris, his hologram will do the job.
He does it to counter Marine Le Pen who will do her meeting in Lyon the same day, and show how uncool she is (because cool kids in school use holograms). In his own words:>"What I want to say with this hologram, it is that we stand firmly on the side of the knowledge-sharing that prevails in the scientific field, rather than that of Marine Le Pen. I searched a long time what response to make to the proposal of madame Le Pen, an answer to the peaceful, smiling. And I decided to confront the knowledge and the scientific progress of the science, because the sharing of knowledge can only enrich France, and the whole of humanity."
Mélenchon is not the first politician to use holograms: Narendra Modi did 53 simultaneous meetings in India in 2012 for his reelection campaign, and Recep Tayyip Erdoğan appeared as hologram in a remote city in Turkey in 2014.