This text explores the concept of the labor singularity — a theoretical boundary where artificial intelligence fully substitutes human work, potentially breaking the historical cycle of capitalist self-correction. The author argues that capitalism has survived past crises by using labor's indispensability as a tool for institutional reform and wealth distribution. Using a field-theoretic framework, the paper formalizes labor as a critical coupling coefficient that prevents systemic collapse. To avoid structural instability, the text suggests moving beyond market-valued tasks to recognize latent work. Ultimately, the singularity is not an inevitable technological fate but a product of incentive structures that must be redesigned.