Hahaha...Bitcoin as a digital Gold? I can't but laugh every time I see this. People would initially argue the supremacy of Bitcoin over Gold but after losing the argument due to the obvious reasons they are quick to say it's now the digital Gold itself. Well, this is not the first time I heard/read about that but it's a very bad relation, Gold is Gold, so why can't Bitcoin be Bitcoin? Besides, Gold also has its physical and digital versions, so why is Bitcoin trying to steal that from it? I believe that people who conceived this are very wrong.

As for the use of Bitcoin and the future challenge, well, it will not be so different from what we see now. The future is bright but it will be limited to trading, investment and payment. But for it to be universally accepted is not feasible, we have different people with different mindsets, and so is the world government. And Bitcoin will never be accepted as a country's reserve asset if that is what you are driving towards.