Peter himself did not understand much about this digital currency. This is because Peter was more focused on the big picture, the battles and the war that would be happening in the future
The matter of economic and technological advances is not really one of Peter ability. And he did not need to meddle in everything.
The rise of digital currency as the effect of Earth rising up to the type of higher civilization is without a doubt inevitable
In retrospect, it was inevitable.
There are still a few things that they need to solve regarding that currency. But, Peter is very sure that it would not be long before Earth Prime would reach Type II civilizations after that when the matters that underpinned civilization is solved.
And after a Type II civilization, there is the Type III civilization. This civilization outstripped the two other types of civilization.