The math of QM underpins so much of modern technology, like transistors, MRIs, high precision clocks..

I feel like there's been a humongous failure of science communication if the applications of QM aren't obvious to you :( I don't mean that in a mean spirited fashion, I really do feel despair that someone on HN who enjoyed physics wasn't shown how quantum physics has been the bedrock for so much technology!

EDIT: quick list of places QM/quantum physics is used in the real world: https://scienceexchange.caltech.edu/topics/quantum-science-e...