I&#x27;m not sure if I&#x27;m reading ethereum right, but it sounds a lot like mesh computing, where a user can bid for unused cycles on a bunch of networked computers, or one &quot;world computer&quot; if you agree with the author&#x27;s characterization.<p>If that is correct, then ethereum and Amazon spot instances could be interchangeable - low availability, but potentially lower cost due to the bidding process if there is a lot of excess compute power on the network.