and some of them don't realize that they've made a mistake and so uh you know a lot of energy and uh a lot of work and so forth uh goes into building something only to discover it doesn't work
Mistakes are never made, and the finished products are always completely functional.
mnli hypothesis: Mistakes are never made, and the finished products are always completely functional. premise: and some of them don't realize that they've made a mistake and so uh you know a lot of energy and uh a lot of work and so forth uh goes into building something only to discover it doesn't work