Mr Bryne may be a bit eccentric. But he is certainly right, Overall, Cryptocurrencies and applications dealing with the blockchain, will be Huge. However Bitcoin itself will fade away, no serious investors in for the long haul will buy into Bitcoin with the dangers of a 51% attack by the mining pools, the huge risk of Satoshi's 1million Bitcoin stash being hacked and/or sold, and the plague of negative attention on Bitcoin especially when it comes with it's own Foundation Members(Convicted felon Charlie Shrem, Accused Child Molestor Brock Pierce).