The problem with quantum mechanics if we interpret it crudely is that it implies you should fall through that chair which is not a good prediction Quantum physics implies no such thing You have to be a philosophy graduate whos either not understood whatever philosophy of physics course you took andor had a lecturer who didnt understand quantum theory Still dont worry He he he How can you not like Jacob Lurie Also your recommended book is Well it contains nothing but the usual dribble about misinterpretation or deliberate mangling of authentic Marxist scripture how Lenin and Trotsky were real democrats if only that nasty Stalin hadnt betrayed the revolution etc etc  Zzzz