I doubt it when he used the word 'all'. In as much as we predicts and wish that cryptocurrency will be widely used, there are still some companies which will still be reluctant to accommodate it. Nevertheless, this will not stop cryptocurrency especially bitcoin from been the most valued asset in years to come. It value and price will be so high that no rejection from anywhere can stop it.
Cryptocurrency in five years will be competitive in new forms of technology increasing it's value and additional user's and investors, with bitcoin we are confident that we're still on top traders and hopefully widely recognized.