<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>Turing_Machine</author><text>The headline, while accurate, doesn&amp;#x27;t really describe the breakthrough here.&lt;p&gt;In itself, it&amp;#x27;s not surprising that sunlight, hydrogen from water and CO2 could be put together to make biomass. That&amp;#x27;s pretty much what plants (and many natural bacteria) do already.&lt;p&gt;The novel aspect of these bacteria is that they apparently do the job 10x more efficiently than natural organisms.</text><parent_chain></parent_chain></comment><story><title>Scientist Engineers Bacterium That Inhales CO2, Produces Energy</title><url>http://www.forbes.com/sites/jeffmcmahon/2016/05/29/harvard-scientist-engineers-a-superbug-that-inhales-co2-produces-energy/</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>fabian2k</author><text>The headline is seriously misleading, the energy comes from sunlight which is used to split water into hydrogen. And the bacteria use the hydrogen as an energy source to create biomass from CO2. That biomass is mostly in burnable fuel.&lt;p&gt;The article is very interesting, but the headline makes it sound like a fundamental misunderstanding of thermodynamics.</text><parent_chain></parent_chain></comment><story><title>Scientist Engineers Bacterium That Inhales CO2, Produces Energy</title><url>http://www.forbes.com/sites/jeffmcmahon/2016/05/29/harvard-scientist-engineers-a-superbug-that-inhales-co2-produces-energy/</url></story>