The financial crisis of 2007-8 has been widely understood as a result of the financial system's exceeding its proper place in society; the system became unbalanced, unsustainable, and deprived of a solid foundation. Even as capitalist finance seeks to reinvent itself in the wake of massive upheaval, critics continue to portray the financial system as fundamentally irrational--an unstable, destructive inventor of fictitious money. Characterizing finance...