Meet France's Optical Illusion of a Revolutionary

On Tuesday, French presidential candidate Jean-Luc Melenchon made a speech in seven cities at the same time -- in six of them, the media report, via hologram. The technology Melenchon actually uses is the perfect metaphor for his candidacy, whose success is the latest sensation of this wild campaign.

Star Wars-style 3-D holograms exist; in 2015, Korean researchers demonstrated an impressive early implementation, though the image flickered constantly and was tiny. Last year, Microsoft showed off a far better version, which required multiple cameras and massive processing power. Melenchon, however, uses nothing of the kind. The technology, provided by a 15-person startup called Adrenaline Studio, under license from London-based firm Musion, only requires one camera and no sophisticated computer equipment.