FYI, I disagree with both of you regarding the idea that transaction volume is not essential to Bitcoin's growth because Bitcoin can function like gold. Many things can function like gold and have attempted to do exactly that over human history. Despite that, there is only one gold.
Gold's dominance is predicated upon nearly 4000 years of acceptance in every commercially-connected location on the planet - to this day, you can exchange gold for local money in nearly any city at almost the same exchange rate. Doofus-spammer's theory that Bitcoin doesn't need tx volume because it will function like gold ignores the obvious discrepancy between Bitcoin's 8-year, unstable, and limited-acceptance history and gold's massive scope.
Bitcoin **may** function like gold due to its advantages over gold, but almost any other altcoin could function in the exact same manner and surpass Bitcoin and/or gold. The competing coins must differentiate themselves, and Bitcoin's best differentiation - the first mover advantage and relatively high stability - will be forced to face off against other competing coin's relative ease of transacting. If Bitcoin becomes decisively more difficult/costly to transact with than competing coins who replicate all other features that Doofus-spammer's theory relies upon, Bitcoin's first mover effect will be eclipsed, and we will all lose.
Bitcoin is in no position to claim that it can win on its merits simple because gold wins on similar merits.
There is no argument that bitcoin's 8 years of not having gold's market cap proves it is inferior. Bitcoin is pretty much the number one rising asset in the world as it has been crushing the usd for a couple years now.
Bitcoin is far cheaper to send than gold and way faster, and so you have said nothing to the limitations of bitcoin.
You haven't understood, described, or attended to the reason gold is so valuable today as an inflation hedge and there is no argument that it is because 4000 years ago it was used as a money. Gold's value has to do with its cost of production versus supply which puts a natural and predictable throttle on its value proposition from change rapidly.
Bitcoin also has this mechanism which works slightly differently but produces a similar result: predictable supply.
There are other suitable commodities to this regard, and the value which they might transfer based on their weight (ie cost) but there are also reasons that they are not suitable for such a standard which don't apply as weaknesses/limitations to bitcoin (as described by John Nash):
It is a coincidental fact that the inherent nature of mining and mining technology makes it possible for the prices of certain commodities that are produced as a result of the devotion of labor and capital to the effort of mining to increase less (or decrease more) than might be expected. There is a “dimension paradox”: Agricultural products are produced by using the two-dimensional resource of the earth surface, so the “disappearing frontier” creates a limitation. In contrast, some mining, particularly for elemental metals, can essentially be done in three dimensions, although, of course, there are increasing costs for deep digging. So, really there is lots and lots of gold, silver, platinum, tungtsten, and so forth out there and more can be found by digging deeper.
If we then consider which commodities would be optimally suitable for providing a basis for a means of transferring utility, and if we specifically consider the possibility that the trading partners may be located in different nations and perhaps on different continents, than the suitability of such commodities with regard to the ideal function of facilitating utility transfer depends on the extent to which such a commodity seems to have a value independent of its geographical location.
Clearly, in terms of this geographical perspective, gold has historically been optimal, largely because the labor cost of moving it over great distances is so small relative to the value of what is being transported. Thus, gold formed a very efficiently movable medium for the transportation of a value exchangeable for other values, ultimately deriving, in one way or another, from human labor (with the achievements of warriors here also being viewed as involving labor).
Nowadays, however, few would propose a return to the actual use of simply the metal gold as a standard, for the following reasons.
(i) The cost of mining gold effectively does depend on the technology. Recent cyanide leaching techniques have made it possible again to profitability mind gold at formerly abandoned sites in the U.S. so that it is now a big producer. However, the unpredictability of the cost is a negative factor.
(ii) The location of potential gold-mining locations may not be “politically appealing.” so it would seem undesirable to make a political choice to enhance the economic importance of those particular areas.
(iii) There is some negative psychology about gold such tat even if it were the most logical choice after all, the unpopularity of the idea could be very obstructive.
However, right now platinum would be even better than gold, because it has more value per unit of weight.
Crude petroleum could also be used for barter transactions, and in view of the present state of the global economy it would seem a proper component of an index of prices of internationally traded commodities that enter into the costs of industrial consumption.