Why a 21 Bitcoin Computer? It doesn&#x27;t take a whole lot of horsepower to run a wallet.<p>Second - I&#x27;ve read  through the article a couple of times, and I&#x27;m just not seeing why said computer would need to have &#x27;built-in mining&#x27; to implement this.<p>Kind of tempting to throw together an implementation that shows this, or at least leads me to discover why it would be needed  :&#x2F;