<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>observation</author><text>You should be worried about IAQ - indoor air quality.&lt;p&gt;This is because you spend 90% of your time indoors.&lt;p&gt;It is also because IAQ is far worse than outdoor air quality. The kitchens of most homes would be closed down by inspectors if they were commercial.&lt;p&gt;Correctly ventilating a home with a ERV&amp;#x2F;HRV, bathroom ventilation and oven hood (harder than it sounds because many designs are snake oil) solves the problem. Few people have gone to such lengths, not even the wealthy.&lt;p&gt;The &amp;quot;Building Performance Podcast&amp;quot; has more information if anybody&amp;#x27;s interested. There&amp;#x27;s a lot of good information online from US government websites.&lt;p&gt;Most American homes share a leaky wall with their garage. A garage with shelves of highly toxic substances that offgas through the wall when the weather gets hotter.&lt;p&gt;I intend to design my home so it does not contain these drawbacks.</text><parent_chain></parent_chain></comment><story><title>Smog in our brains</title><url>http://www.apa.org/monitor/2012/07-08/smog.aspx</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>Terr_</author><text>I wouldn&amp;#x27;t be surprised if some future historians are able to look back at modern cities the same way that we look at granny pictures of a soot-streaked city of the industrial revolution.&lt;p&gt;&amp;quot;Yes, some of them thought that it was bad to have all that stuff around, but most thought it wasn&amp;#x27;t too serious compared to the immediate economic benefit it brought.&amp;quot;</text><parent_chain></parent_chain></comment><story><title>Smog in our brains</title><url>http://www.apa.org/monitor/2012/07-08/smog.aspx</url></story>