The gulf between the information we proclaim & the information we know to be true is vast. In other words: we say one thing & do another.
No matter how expert you may be, well-designed checklists can improve outcomes.
The conventional wisdom is often wrong.
Don't trust, just verify.
As W.C. Fields once said: a thing worth having is a thing worth cheating for.
If you own a gun and have a swimming pool in the yard, the swimming pool is almost 100 times more likely to kill a child than the gun is.