Following the controversial success of La Grande Jatte, Camille Pissarro and Paul Signac converted to Neo-Impressionism and, along with Pissarro's son Lucien, formed the basis of the Neo-Impressionist and Divisionist movements. Later promoted by Symbolist artists and critics, Divisionism became the avant-garde style of post-Impressionism. The support Seurat initially received slowly dissipated as he became increasingly hostile towards other artists, believing that they were corrupting his style and technique. By the end of his life few works of his received the attention they used to. Circus, an unfinished work exhibited after his death, was barely noticed by critics or the general public.

Can we conclude that is neo impressionism and post impressionism the same?
no