“In his early years, Sehgal” – now famous for his “constructed situations” – performed for the French choreographer Jérôme Bel, working also with Les Ballets C de la B, a highly conceptual contemporary dance company in Ghent.” Earlier this fall, he created new works for a very un-Sehgalian setting: the Paris Opera Ballet at the stupefyingly lavish Palais Garnier.