The work Capital and Unemployment in the Twenty-First Century seeks to make a thorough analysis of the anatomy of technology in contemporaneity, demonstrating how the economy of labor time is a fundamental vector of all technological transformations. The essential concern of technological development is not to reduce the burden of labor, but to ensure the preservation of the rate of profit for capitalists, in a context of deep crisis of accumulation and expansion of the capital system. The apprehension of the ontological anatomy of unemployment within the capital system in Tatiana Lyra Lima Félix's work involves the consideration of the category of totality as the predominant moment before the other categories. Regarding categories, it is important to remember that Marxian theory conceives them as moving and driven forms of reality, as forms of being and determinations of existence. This implies considering that the categories are not eternal and immutable entities, much less do they emanate from a transcendental subject or from the sovereign will of an individuality split or separated from the objectivity of the world.