https://www.reddit.com/r/lifehacks/comments/9cd4ix/i_wanted_natural_light_in_a_basement_that_has_no/
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https://www.reddit.com/r/lifehacks/comments/9cd4ix/i_wanted_natural_light_in_a_basement_that_has_no/
origin - https://www.pipiscrew.com/2018/09/he-wanted-natural-light-in-a-basement/ he-wanted-natural-light-in-a-basement