Hindsight's 20/20 American proverb sentence
The word "Hindsight" means understanding after something has happened. 20/20 is a term in ophthalmology to mean good vision.
The phrase implies that looking back on what happened is easy for someone to understand.
Hindsight is 20/20. I should have listened to your advice.
We have realized his decision brought the company many problems, but hindsight's 20/20.
The phrase appeared in the 1900s.
A remark you make when you are leaving on the purpose of creating a stronger impact
The letter he left before leaving was his parting shot.