If retro means "back” and spec means "to see or look,” what is the best definition of the phrase in retrospect in the sentence below?In retrospect, I probably should have taken better notes on that topic.

“Retro” means back, and “spec” means to see or look, so “in retrospect” means looking back at something that has already happened. In the sentence, the speaker is thinking again about their earlier choice not to take better notes. The best definition is “in considering the past.”

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