since

https://www.straitstimes.com/singapore/politics/spores-fertility-rate-has-not-stabilised-citizen-core-will-shrink-without-action-dpm-gan

so do this la

https://acotra.substack.com/p/the-stable-marriage-problem

oh it doesn't hor! thats just whether ppl are willing to part with jitpahbanh to make a baby.