Very interesting, indeed! Ephrat Livni wrote this on Quartz:
The boulevardier, or flâneur, was a French 19th-century literary type who wandered Paris with no particular purpose other than to be on the scene. Although flâneurs didn’t necessarily do anything visible to the naked eye, besides hanging around in parks and cafes, they watched what was happening, taking in the bustle of others and so developing a deeper understanding of city life and their changing times. The writer Charles Baudelaire illuminated the flâneur and the art of flânerie in his 1863 essay “The Painter of Modern Life“:
The crowd is his element, as the air is that of birds and water of fishes. His passion and his profession are to become one flesh with the crowd. For the perfect flâneur, for the passionate spectator, it is an immense joy to set up house in the heart of the multitude, amid the ebb and flow of movement, in the midst of the fugitive and the infinite. To be away from home and yet to feel oneself everywhere at home; to see the world, to be at the centre of the world, and yet to remain hidden from the world—impartial natures which the tongue can but clumsily define.