The big difference between the early internet and the blockchain revolution; is that all of the hardware is already in place. Imagine how quickly the net would've spread if television sets doubled as modems.
There's no blockchain device we need to manufacture and distribute to homes all around the world; we're just using what's already there.
Yep, BC piggybacks on the infra so should help it half the uptake time in a Moore's Law kind of deal.