&gt; is there a final limit to how small things get<p>AFAIK yes, the limits are known as Planck Constants. It means that we are living in a digital universe.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Planck_constant" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Planck_constant</a><p>There are also conjectures about a _holographic_ universe.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Holographic_principle" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Holographic_principle</a><p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;results?search_query=holographic+universe" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;results?search_query=holographic+uni...</a>