<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>sxp</author><text>Note that &amp;quot;fast&amp;quot; is a relative term in this case. E.g, &amp;quot;On average, these particles reached Uranus and Neptune 38 and 46 years later, respectively, with the fastest reaching Neptune in under a decade.&amp;quot;&lt;p&gt;It&amp;#x27;s more accurate to say that these are &amp;quot;cheap&amp;quot; paths rather than fast ones since the primary saving will be fuel. These paths will be too slow for humans to use and any dramatic improvement in human travel through the solar system will require a technological breakthrough like a high-powered torch drive [1] or laser-powered solar sails [2]. Otherwise, we&amp;#x27;ll still be stuck with multi-year trips to anything beyond Luna [3]&lt;p&gt;[1] &lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;www.projectrho.com&amp;#x2F;public_html&amp;#x2F;rocket&amp;#x2F;torchships.php&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;www.projectrho.com&amp;#x2F;public_html&amp;#x2F;rocket&amp;#x2F;torchships.php&lt;/a&gt;&lt;p&gt;[2] &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.youtube.com&amp;#x2F;watch?v=oDR4AHYRmlk&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.youtube.com&amp;#x2F;watch?v=oDR4AHYRmlk&lt;/a&gt;&lt;p&gt;[3] See the Impulse vs Brachistochrone table at &lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;www.projectrho.com&amp;#x2F;public_html&amp;#x2F;rocket&amp;#x2F;appmissiontable.php&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;www.projectrho.com&amp;#x2F;public_html&amp;#x2F;rocket&amp;#x2F;appmissiontable...&lt;/a&gt;</text><parent_chain></parent_chain></comment><story><title>Astronomers Find Cosmic &apos;Superhighways&apos; for Fast Travel Through Solar System</title><url>https://www.sciencealert.com/solar-system-arches-of-chaos-create-cosmic-fast-travel-superhighways</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>hguant</author><text>I was under the impression that this was common knowledge among the astrophysicist set, going back, well, according to Wikipedia, to the 1890s when Poincare figured out you could do zero-energy orbit transfers[0].&lt;p&gt;I suppose the novelty here is that someone identified a subset of &amp;#x27;fast&amp;#x27; paths along the Interplanetary Transport Network.&lt;p&gt;[0] &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Interplanetary_Transport_Network&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Interplanetary_Transport_Netwo...&lt;/a&gt;</text><parent_chain></parent_chain></comment><story><title>Astronomers Find Cosmic &apos;Superhighways&apos; for Fast Travel Through Solar System</title><url>https://www.sciencealert.com/solar-system-arches-of-chaos-create-cosmic-fast-travel-superhighways</url></story>