alt Hacker News> stochastic system
Every day when you lower your butt onto your chair, you trust a stochastic system enough to assume you'll rest on the chair safely and not spontaneously phase through, which would lead to rather gory and painful terminal experience.
Physics at macro scale is stochastic, which is a good reminder that stochastic != uniformly random. Expected distributions matter.
While strictly true, QM has such small standard deviations as to be irrelevant on the macro for things like bums and chairs.
IMO a better example would be the stochastic nature of quality control in manufacturing.