<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>wazoox</author><text>The Ocean Cleanup project started somewhat like this. They made prototypes and extensive testing, and concluded honestly that cleaning the ocean isn&amp;#x27;t doable, so they turned to cleaning up the source of most oceanic plastic: rivers. Their river cleaning boat is completely different from their initial idea, but it works well.&lt;p&gt;Ideas are cheap; execution is hard...</text><parent_chain></parent_chain></comment><story><title>Irish teen invents magnetic liquid trap to remove microplastics in water (2019)</title><url>https://preparednessmama.com/irish-teen-invents-magnetic-liquid-trap-able-to-remove-up-to-90-of-microplastics-from-water/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>kwhitefoot</author><text>Sounds plausible but of course there are lots of details to be worked out including how to recover the magnetite and how much it costs&lt;p&gt;But it&amp;#x27;s from September 2019.  Does anyone know if anything has happened with the idea in the last 18 months.</text><parent_chain></parent_chain></comment><story><title>Irish teen invents magnetic liquid trap to remove microplastics in water (2019)</title><url>https://preparednessmama.com/irish-teen-invents-magnetic-liquid-trap-able-to-remove-up-to-90-of-microplastics-from-water/</url></story>