While I still don't completely understand the whole discussion wrt the LTV, I do feel like I got a better understanding of classical economics. The main thing this book did for me, however, was make me realize that the assumptions necessary for the LTV to make any sense (perfect competition, perfect information, all labor is the same, switching 'capital' to a more profitable sector is basically free, no economies of scales or increasing marginal costs) are just as unrealistic as the ones made by neoclassical economists.
Still, some empirical studies by e.g. Paul Cockshott seem to suggest that one of the main hypotheses of the LTV- that profits are proportional to labour used (even within sectors)- is true. I wonder what other people make of this. If you have any strong opinions on this or have any recommended readings on this topic, please share your thoughts!