This book is much more than science fiction. Written in 1968 - almost 40 years already, gosh - if he remains strangely topical, it is because he is more of a political reflection on our world. Read French there is 25, he impressed me, for the cohesion of a hybrid text organization - somewhat complex in its structure, its quantity, its literal invention ... - and a thought deep, organized, that we discover little by little. I found my impressions by rereading it, in English this time - I do not recommend that an informed reader, because the text is full of neologisms and inventions morphosémantiques -. and I consider that with "Limbo" Bernard Wolfe is one of the biggest political fiction novels ever written.