&gt; &quot;&quot;cold fusion&quot;, &quot;infinite energy machines&quot;&quot;<p>I don&#x27;t think it&#x27;s fair to lump those two together. I think we all accept the energy potential in fusion is there, and it also seems possible that the most efficient way to tap that energy is one we have yet to fully understand. The most efficient method could be found under the &#x27;cold fusion&#x27; umbrella, and even if these methods turn out to be a different process than fusion, we still may end up learning something new anyway. For example, sonoluminescence has been linked to fusion before, but even if the processes involved end up being different to fusion, it&#x27;s still an interesting process:<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=GJolILUbdNw" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=GJolILUbdNw</a><p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Sonoluminescence" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Sonoluminescence</a><p>The point is, it doesn&#x27;t serve us to dismiss fields of scientific research that have some chance of bringing us a new understanding of the science involved, even if we end up scrambling around in the dark for a long time.