with 20/20 hindsight

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with 20/20 hindsight

With the benefit of one's current knowledge or experience, thus allowing them to see why something in the past was wrong or how some mistake could have been avoided. Said when examining some negative past event retrospectively. Often written as "with twenty-twenty hindsight." I spent my whole life working, almost every minute of every day. Now, with 20-20 hindsight at the end of my life, I see that I squandered the time I could have been spending with my family. Of course, with 20-20 hindsight, it's easy to laugh at the quack doctors of the early 19th century, but back then, even legitimate medicine was still largely rooted in superstition and pseudoscience.
See also: 20, hindsight
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