Worth subscribing to
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“Love this podcast. All of the information you never knew that you needed to know. Very fun.”
JoMcD01 via Apple Podcasts ·
Canada ·
07/15/16
More reviews of Completely Optional Knowledge
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“You learn stuff with this podcast. Stuff you can use with friends and you sound smart.”
Nicenice9 via Apple Podcasts ·
United States of America ·
06/03/18
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“Smart, geeky, and creative! A fun podcast that takes me far across the globe to hear quirky science tidbits from experts who love what they do. Light-hearted and funny, too.”
diana64683 via Apple Podcasts ·
United States of America ·
05/27/16
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“Really great podcast, quick to listen to. I really like how it challenges my preexisting ideas and initial reactions to the topic. Give it a listen even if you're not into Greenpeace - you'll get an expanded understanding of and appreciation for the world around us!”
Jumi23 via Apple Podcasts ·
United States of America ·
03/14/16
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