In this post, Ajeya Cotra offers a clear, unsentimental framework for deciding whether to marry a long-term partner, treating marriage as a commitment device that enables deeper investment, trust, and shared life-building while also forcing a real tradeoff against possible alternatives. The piece walks through when “waiting for more information” stops being useful, how to evaluate a partner as cofounder, friend, and lover, and why the finite value of time may make endless searching costlier than it feels.