I really enjoyed the summary of philosophies that comprised the earlier parts of this, and hoped honestly to stay with the author, tempted by the prospect of an easy answer, a temptation I ought well to know invariably winds you up with hopes dashed on the rocks. ;) Alas, the convincing arguments of the author for things unknowable are his own downfall when he starts pushing theories of his own that see him raising his own perspective to a position he’s already laboured to convince us is impossible for him to argue anything about: where he’s pushing his ‘knowledge’ of things supposedly unknowable. Also, heterosexist in at least its thoughts around sex. I only skimmed from that point, put off. Shame, cuz he’s a good explainer and I did enjoy the groundwork.