I have all that stuff, but gold has a track record throughout recorded history as a source of value.
true. If the financial world melts down, gold will be great to have, but these guys are taking it to the next level - suggesting a zombie-style apocalypse (criminals or the unprepared being the zombies) will occur.
If the system truly breaks down to that extent, you may have to trade a pound of gold (or more) for a meal.