It means your bank accounts are gone, your credit cards are gone.
And how are you actually going to use gold as currency? Walk into a shop and shave off some gold at the checkout? And how will the store owner authenticate that it's actually gold?
Bullets will be a better currency than gold in that scenario.
But I agree, bullets are always a better currency; one of the positives (for people who responsibly enjoy firearms) living where I do is minimal restriction on such things.
Basically unless its like China vs US then you don't need sell BTC to fund the country (even then I don't think you would; but if you never need to sell BTC its pointless).
If China vs US then realistically, China can and probably will cut a lot of the internet traffic between the two. Bitcoin only functions because of the public ledger; if Chinese miners aren't sync'd with non-Chinese miners then you have a double-spend problem and I can't see bitcoin not going to 0 pretty quickly.
Umm this is a solved problem. Believe it or not gold has been used as currency for thousands of years.
This only applies to very large amounts of monetary value. $1m USD is currently under 24lb/10.7kg.
