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perfect understanding of events only after they have happened (Etymology: From the term visual testing method 20/20 referring to normal visual acuity.  wiktionary.org); the full knowledge and complete understanding that one has about an event only after it has happened (With 20/20 hindsight we now see where our strategy went wrong. merriam-webster.com) | |||
| 20/20: 1 phrase in 1 subject |
| Energy industry | 1 |