The bitcoin network isn&#x27;t as mighty and powerful as you make it out to be.  The hashing power you talk about is spent doing redundant work, and the network caps at 7 transactions a second (by design).  Hashing power is moot when organizations can (and  routinely do) bring down the network by spamming it with &quot;stress tests&quot;.<p>Just because there haven&#x27;t been any wildly successful block chain implementations doesn&#x27;t mean that the technology can&#x27;t be employed elsewhere.  Many technologies are in play today that were once deemed as not being useful, and even though I&#x27;m critical of block chain, I can still think of a few validation use cases for big banks with it.