> Software is what’s left over after a group of humans finishes negotiating with each other about what the system should do.

The issue is that sometimes you don't know what the system should do until you build it.

A design is a hypothesis. Most of them are wrong, in subtle or not so subtle ways.

(Also, as a separate issue, having a group in the first place increasingly adds negative value. If it was ever a good idea to design by committee... it's increasingly expensive to do so, in opportunity cost.)