<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>rsync</author><text>I am stupefied by this.&lt;p&gt;Many, many times I have considered:&lt;p&gt;&amp;quot;what would happen if I banked my own blood and transfused it back to myself 40 years later&amp;quot;&lt;p&gt;And of course, my next thought was &amp;quot;of course that has been thought of, and tried, and the reason we don&amp;#x27;t all know about it is because it must not be helpful.&amp;quot;&lt;p&gt;But you&amp;#x27;re telling me that, in fact, nobody thought to try this ?  It is 2014&amp;#x2F;2015 when someone got around to trying this out ?</text><parent_chain></parent_chain></comment><story><title>Scientists have shown that young blood rejuvenates old tissues</title><url>http://www.nature.com/news/ageing-research-blood-to-blood-1.16762</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>jzila</author><text>Carl Zimmer published a piece on this in the NYTimes almost a year ago (&lt;a href=&quot;http://www.nytimes.com/2014/05/05/science/young-blood-may-hold-key-to-reversing-aging.html?_r=0&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;www.nytimes.com&amp;#x2F;2014&amp;#x2F;05&amp;#x2F;05&amp;#x2F;science&amp;#x2F;young-blood-may-ho...&lt;/a&gt;).&lt;p&gt;Here&amp;#x27;s the HN thread on that topic: &lt;a href=&quot;https://news.ycombinator.com/item?id=7695621&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;news.ycombinator.com&amp;#x2F;item?id=7695621&lt;/a&gt;</text><parent_chain></parent_chain></comment><story><title>Scientists have shown that young blood rejuvenates old tissues</title><url>http://www.nature.com/news/ageing-research-blood-to-blood-1.16762</url></story>