The problem isn&#x27;t physically occupying space, it&#x27;s resource consumption. Humans themselves don&#x27;t consume much space in total - the entire 2010 population could &#x27;stand on zanzibar&#x27;, as the book title predicted: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Stand_on_Zanzibar#Title" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Stand_on_Zanzibar#Title</a>