Sort of unrelated but,<p>&quot;According to my calculation, a single Bitcoin transaction uses roughly enough electricity to power 1.57 American households for a day.&quot;<p><a href="http:&#x2F;&#x2F;motherboard.vice.com&#x2F;read&#x2F;bitcoin-is-unsustainable" rel="nofollow">http:&#x2F;&#x2F;motherboard.vice.com&#x2F;read&#x2F;bitcoin-is-unsustainable</a><p>I find this interesting thinking about Bitcoin as a currency. The first cryptographic currency example that I had read, from a cryptography book, didn&#x27;t involve active power. I&#x27;m really surprised that Bitcoin has been able to gain this much popularity with its design. Does this explain how you might be able to lose a household-sized amount of money in a transaction on this network? I don&#x27;t know, but I think that the blockchain idea might not be the ideal for digital currencies.