<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>yojo</author><text>I’m skeptical of the closing claim that exponential growth keeps happening forever. Yes, you can grow GDP 2% for 200 years, that results in an economy 50x the start size. Expand it to 1000 years and you’re talking about an economy 400 million times as large. After 2100 years you’re up to an economy a QUINTILLION times as large.&lt;p&gt;At some point the exponential curve has to go S-shaped. Maybe we’re still in the happy exponential looking part of the curve. There are also signs we might be transitioning. Population growth has slowed, productivity growth has slowed, and the marginal return on capital seems to be somewhere around zero given modern interest rates.</text><parent_chain></parent_chain></comment><story><title>Save like a pessimist, invest like an optimist</title><url>https://www.collaborativefund.com/blog/save-like-a-pessimist-invest-like-an-optimist/</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>jameslk</author><text>The article is kind of fluffy. Not everyone should save and invest the same way. Someone who&amp;#x27;s closer to retirement shouldn&amp;#x27;t necessarily be investing like an &amp;quot;optimist&amp;quot; (i.e. more risky long-term portfolio), and they&amp;#x27;ll probably want more liquid assets than someone who&amp;#x27;s in their 20s with very limited obligations.&lt;p&gt;Having an emergency fund can benefit everyone but beyond that your portfolio should ideally be driven by your goals and their timeline. If you have no goals and you&amp;#x27;re just trying to make as much money as possible in the stock market like a lot of new retail investors, this definitely should be given some thought.&lt;p&gt;I think most could be better served by learning and applying goal-based investing and modern portfolio theory to achieve what this article is clumsily trying to suggest.&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Goal-based_investing&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Goal-based_investing&lt;/a&gt;&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Modern_portfolio_theory&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Modern_portfolio_theory&lt;/a&gt;</text><parent_chain></parent_chain></comment><story><title>Save like a pessimist, invest like an optimist</title><url>https://www.collaborativefund.com/blog/save-like-a-pessimist-invest-like-an-optimist/</url></story>