“When it can be used to buy and sell the things we want, as seamlessly as fiat currency, that’ll be the game changer.”

I’d be interested to know if this is him being disingenuous, or just slight ignorance. But a mix of Gresham’s law and policy (eg CGT tax in much of the world) gets in the way of using Bitcoin to buy and sell the things we want, as you are all too aware!