It is not theoretically impossible, although such a scenario is not going to happen anytime soon. Right now, around a few tens of thousands are using Bitcoins actively. If the usage grow to a few million, then we can expect the exchange rates climbing to five-digits, or even six-digits. It may take five or ten years, to achieve that much adoption and usage.
It all depends upon what exactly these tens of thousands are actively using Bitcoin for, lol. Does just holding bitcoins pass as active usage?
My point was totally another. "Actively using Bitcoin" is evidently a euphemism for speculation and profiteering ("buy low sell high"). Expanding Bitcoin usage to a few million new users (from tens of thousands) would mean selling the existing coins to them since there is no other source of new coins of that scale (newly minted coins simply don't cut it)...
In this way, we advocate for a new tier in the base of the financial pyramid that Bitcoin has become (or has always been)