“If learning to think is learning to resist a future that presents itself as obvious, plausible, and normal, we cannot do so either by evoking an abstract future, from which everything subject to our disapproval has been swept aside, or by referring to a distant cause that we could and should imagine to be free of any compromise. To resist a likely future in the present is to gamble that the present still provides substance for resistance, that it is populated by practices that remain vital even if none of them has escaped the generalized parasitism that implicates them all.”