Fixed money always pools.
Bitcoin is destined to be hijacked by Wall Street; no doubt in my mind. Between buying it and having people making them custodians, they will control the majority of it.
By the way Gresham's law, in this era, is only applicable when legal tender is involved. It also was not applicable in the days of metal currency as the counterfeit coins of the Roman Empire era show. Even though neighboring Kingdoms had money with more intrinsic value, it was still shunned for Roman coins.
As always, it ties to the productivity to the currency.