You are going in an infinite loop trying to equate something (gold) to nothing (bitcoins). Typing zeros into a screen will not equate to a hand full of gold coins. The value of gold or any other metal is not a relevant argument because in a free market you can have competing currencies. Bitcoin could compete if the USA was a free market (its not) and if it was backed by something (its not). Thus the reason why investing in Bitcoin in any manner has risk. The argument with the asteroid doesn't support simply bc the metals will still be around after it hits earth. Your hard drives with stored zeros will be annihilated (much like your premise).