Is this a joke? If the major world economies collapse and we enter the apocalypse, bitcoin will be useless as well. The economy is the most important aspect of a functioning country. If the dollar suddenly went to 0 overnight, nothing would function and you certainly wouldn't be "rich."

Assuming you're talking about a less severe attack similar to the theory behind that Pelham 123 movie (spoiler: bad guy buys gold, then commits act of terrorism, causing dollar to decrease and gold to increase in value), then that still wouldn't have much of an effect on bitcoin since the majority of the general public doesn't even know what bitcoin is. Gold would go up, bitcoin wouldn't.

Pretty sure I'm replying to a troll thread but whatever.