This is a very important contemporary marxist work imo (despite being published only this year). It’s VERY relevant to climate change, the question of production under socialism and communism. It’s also essential if you wanna have an idea of what Marx was up to (in terms of theory) in the late 1870s until his death bc Saito’s source for his arguments is the previously unpublished MEGA2 (which he worked on) and others’ work on MEGA2. Highly recommend it, though it is somewhat (prolly VERY) abstract/academic.