Bitcoin does not beat regular coins when it comes to that yet.
After all, money does not "move", it is always stored in someone's pockets and switches owners instantly. It's just everyone has different time preferences and stores different amounts of cash for different amount of time.
I hope Google doesn't kill Calendar before 2018.
Scalability is an issue. In the future we will probably have to rely on thin clients making bitcoin less attractive.
Governments won't peacefully accept bitcoin. Why would we let people make under the table payments, enabling tax evasion and laundering? They've ignored it so far but as it becomes more popular we could see action taken against it. You may object that bitcoin is decentralized and on the internet and therefore invincible. But if exchanges were shut down that would be devastating.
A better cryptocurrency could take its place.
2. Governments will die off without ability to have "budget deficits" via money printing. No one would vote for politicians because they wouldn't be able to build stuff "for free" by borrowing money from your unborn children.
3. Owners of Bitcoin have all incentives to adjust the protocol to fix all bugs and implement all useful features to not lose their wealth. Not a problem for Bitcoin and not a problem for anyone else either. Even if Bitcoin is replaced by Bitcoin2, it won't change things for the fate of the governments.
In the leftist case, the outsiders are the rich and the insiders are "99%", they use deficit spending to remain in power. In the rightist case, the outsiders are wealthy foreigners and the insiders are their own citizens, they use expansion and conquest to remain in power.
Fiat currency enables leftist policies, hard money encourages rightist.
I suspect not. Whatever the long term shape of the price curve is, I think that in the moderate term its probably something like a logistic curve, and this year saw most of the steep portion of the logistic curve and is already bending into the high-end slow-growth portion of the curve.