It has been my contention since the beginning (almost 4 years) that this thread's topic will be what stops bitcoin from going mainstream.
So let's talk about this...
If there were a value stable COMPLEMENT to bitcoin (something like GEM, EnCoin, et. al.) which was created as stable "swap space" for speculators when the bitcoin market is falling,
Would that stable currency eventually gain dominance because it alleviates the need for bitcoin in the first place?
Specifically, would "stable coin" become the primary "currency" for setting prices, measuring value, making loans and paying off debts. While relegating bitcoin to "scarce commodity" status. Furthermore, would there be any point in speculating in a "commodity" with no particular use except as a currency?
I don't think it is important if currency A or currency B is the primary one, or if people enjoy speculating on it. What I find important is the fact that in this "double currency system" only one of the 2 can be used as an actual currency and money transfer, and the other one as investment/speculation/protection/whatever. I don't think Bitcoin was ever designed to be just that, but there is no reason why it could not become one. This is topic for another thread.
What I find most agreeable in this thread, is the obvious fact (obvious even if lots of people don't want to talk about it) that the perceived inequity or "ponziness" of Bitcoin is more important for large scale adoption than the actual fact that it is or not a scam. And this was said and repeated over and over in other threads too by a minority of people. It is a marketing failure to ignore something so fundamental as the perceived legality and safety of a product.
I personally don't care how rich the early adopters can become, but I believe Bitcoin (or any alternative) only has a meaning if it goes mainstream. If it stay a niche plaything for a bunch of geeks it is a failure and deserve to disappear. A world changing idea has a meaning only if it has the strength to actually change the world. If not, it is just fulfilling the profecy that it is just a brilliantly executed ponzi schema.