Gale-Shapley algorithm

Singapore's government-backed dating app is reported to use the Gale-Shapley stable marriage algorithm, the classic matching method that pairs participants so no two people would rather be matched with each other than their assigned partners. The algorithm, which won its creators a Nobel Prize in economics, is widely used in school admissions and residency matching. Commenters are debating how well a decades-old matching theory works for real romance.