Speculative genealogy of philosophy, from the religious-mythical, such as the Bible, to contemporary speculative genealogy, at least as early as Rousseau all the way to folks like Freud and Sohn-Rethel, are necessary for philosophy "proper" to grapple with. For there to exist such a multitude of ideas "out there" for us to reason about freely, i.e. disinterestedly, presupposes some fissure that occured between mind and body in humanity. The idea that there could be thought-itself or thought as such, and not the thought-of-something, which at the same time was always experienced-as-a-something, is seen as new or modern or not always been, understandably so, from the perspective of speculative genealogy. One can imagine a scene of someone witnessing another human utter the phrase "I am thinking" for the first time, only for them to respond "you are already alienated, you have lost yourself". After all, is not this self-conscious, act of knowing what Kant and German idealism in its most lofty attempts strove to achieve, or from the opposite angle, to show us has always been true? It could very well be said that there is then nothing more human that has ever been done in the history of philosophy, that long, long project of trying to recover something we once had, which, much more tragically humans, as it might turn out, we only ever thought we had.