<i>Individuals and companies with billions of dollars in cash can&#x27;t really stick it in a mattress and ignore it.</i><p>True.  Far better to bury it somewhere remote.  See this &quot;news article&quot; from the future about how it plays out:<p><pre><code>   The desert dollar industry 
   January 1, 2021

   These days, the desert is swimming in cash... literally.
   Over the last six months, a booming business in illegal   
   cash storage has sprung up in Nevada, New Mexico, and 
   Arizona where analysts estimate that $30 billion worth of 
   $100 notes have been hidden. By day, smugglers drive deep 
   into the desert, SUVs loaded down with suitcases full of 
   Ben Franklins. Once they&#x27;ve found an ideal spot, they wait 
   till the sun goes down and frantically dig a hole, only to    
   drive away the next morning with nothing but the cache&#x27;s 
   GPS coordinates and a drone or two to guard it. When asked 
   about the sorts of people staying at her motel these days, 
   Smith shrugs. &quot;I don&#x27;t ask who they are and they pay cash.&quot;

   ...
</code></pre>
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