> So basically, it's below the "Reliability*Utility" threshold (that's my term for the drastic dropoff in usefulness of a product/service/person when their reli

> So basically, it's below the "Reliability*Utility" threshold (that's my term for the drastic dropoff in usefulness of a product/service/person when their reliability goes from 100% to 90% or lower) Useful concept, that's exactly it.