https://open.substack.com/pub/singulargrit/p/small-worlds-large-errors?utm_source=share&u… MarkKordusic · May 11, 2026 https://open.substack.com/pub/singulargrit/p/small-worlds-large-errors?utm_source=share&utm_medium=android&r=54n20e Replies MarkKordusic · May 11, 2026 "It is not a domestic hobbyists concern" Stream+733(H4+ 74610