French far-left firebrand Jean-Luc Melenchon has embraced technology during the launch of his presidential campaign in Lyon, with a 3D hologram of him making his speech appearing at the same time at another rally in Saint-Denis, near Paris.

Melenchon, wearing a Nehru-style jacket, tried to use the hologram technology to give a modern look to his launch, which coincided with that of the far-right leader Marine Le Pen.

Melenchon is certainly not the first politician to employ such technology.

In 2014, then-Turkish Prime Minister Tayyip Erdogan used a huge hologram of himself to attract wider support, while India's Narendra Modi trounced the opposition with a campaign that included holograms of his speeches in villages across the country.

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- AAP