Earlier quoted context omitted.
And completely worthless in the event of war with attacks on power grids electronics etc. Gold on the other hand, I could trade for food.
If you are at a war where your whole electric grid and internet and SMS are completely down, you have much bigger problems than currency not working. 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 bette…
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.