People would simply use what is left in circulation.
We sort of already have that situation now with lots of the coins from the original miners being forgotten or lost.
I doubt the central banks *want* a crippled economy, what they want is not to lose their position as your lord and master!
What do you think the point of this game is? It isn't to make everybody love bitcoin
You seem to be prescribing motives to players that don't really match their actions - Do you not think the Gold and Silver markets are manipulated to keep the price from running away and causing a panic into the "safe haven"?
I think the gold/silver markets are likely manipulated, for no less a nefarious reason than the money being made on derivatives based on the market far outweighs the cost of moving the price.
However, this does not necessarily lead to that, bitcoin is not metal. It is not subject to the same laws that govern its control. I am not aware of any actions that have been taken by the central banks with regard to bitcoin. The only motives I assign to the bank is the betterment of its own position in the game.
As for the point of the game - I think we have different games in mind. I have the broader goal of how the central banks might serve their own best interests through the mechanism of bitcoin, whereas you seem to be specifically focused on how best to discredit bitcoin, based on the assumption that this *is* the optimum strategy.
I don't agree with the premise that discrediting BTC is the best action for the banks to take. I think we even agreed that you can't *kill* it you can only mess with it. If it can't be killed, then maybe it can be controlled.
The more I think on the more the 'own the network' plan seems to make sense for the banks. I'd be glad to hear counter arguments to that, as it has me a little worried. I'm really hoping they are stubborn/stupid enough not to.
Central banks can't serve their purpose through Bitcoin because Bitcoin cannot be created at will to accomplish policy goals. If CBs were going to support Bitcoin, they'd already be supporting gold as it provides many of the same balances. The problem with gold is it's opaque - you have to store it, and it's very valuable so you don't want to let everybody see it. This provides a way to, even on a gold standard, produce currency in excess to what your "backing" would allow, because nobody checks how much you actually have and lacking that information it's pretty much impossible to determine how much currency should be out there.
Bitcoin doesn't allow that - If a currency were to be backed by it, the reserve address would probably be printed on the money so that anyone who wanted to check what their dollar was backed by could just look up the bitcoin address and see how many BTC there are relative to the amount of the paper currency in circulation.
So again, please re-examine what purpose central banks actually serve - If you think it's to "keep inflation low" I suggest you re-examine your analysis.
It is to finance government. The way you finance government when you don't want to tax as much as you want to spend is by devaluing the currency. Bitcoin would make that impossible, and in being such good money demonstrate to the world what bad money all alternatives are.