According to a lot of the nutjobs that invest in precious metals you better stock up on gold, silver, pennies, and nickels.
Because when planet x crashes into the earth and a zombie apocalypse your silver and gold will supposedly get you all the basic essentials.
Yup, with no economic system in place, your little disks of gold and silver will have more value than rocks and acorns.
People need to get real, if the world would happen to end, which I'm 99.9999% sure it won't, your silver and gold won't have any more buying power than cow dung and dandelions.
Think about it, the only reason gold and silver is worth anything is because it's worth money. You can sell it and be paid for it.
Will if their was a major, global wide economic collapse, sure, you can get money for your gold/silver, but that money will be useless.