I've always been a firm believer in the fact that the failure of fiat currencies will be the biggest driving force behind mass bitcoin adoption. The 'mind shift' they are speaking about will become more prevalent over the next 5 to 10 years as more and more countries enter the 'currency wars' as they devalue their currencies in order to try and stimulate growth in their economies.
One of the things that is taking place in China right now is a mind shift, in which people start to see Bitcoin as a viable alternative for the Chinese Yuan. Many businesses are investing a portion of their holdings in Bitcoin to diversify their portfolio, as well as having an option to avoid financial uncertainty in the country.