The two inches nobody wrote down
Photos die in text threads
The clash gets photographed, texted to the PM, and buried under forty other messages by Thursday. When the dispute lands three months later, nobody can find it.
Thin paperwork kills change orders
Field conditions cost you real money — but a change order backed by "Dave remembers it" gets shaved or denied. Documentation is the difference between eating it and billing it.
As-builts from memory
At closeout, someone reconstructs months of field changes from crumpled markups and recollection. The record existed once. It just never got kept.