Gold and bitcoin are complimentary and you can buy gold with bitcoin and vise verse. That's what Nikolay Gertchev missed. Its the conflict between the perfect currency and a workable currency. Gold can be confiscated but so can your computer and all your bit coin backups if government really wants to shut you out of bitcoin. I know of people that have been placed under house arrest with a ban on electronic communication. Nothing is or can be perfect. I believe the world will use both gold, bitcoin, local employment trading systems and local government extinguishing script all at once.
There's a pro-bitcoin article on Mises daily today.
Many Austrian school people will point out that gold is only an inflation hedge if you can trade it with what ever replaces the inflated currency when it finally dies. You don't trade gold for goods in the hyperinflation crisis because you will get ripped off or killed by some thug for the gold your waving around. So when the crisis is at its peak you trade vegetables, solar cells, batteries and keep the gold hidden. The gold is for after the crisis when the new 'improved' dollar comes out. Then you buy that with your gold. If the new improved dollar is a gold currency you still trade ingots for it because coins and shire silver type cards are more convenient than gold ingots. Bitcoin will become the key digital trading element and gold the key long term emergency store of value.
Both can go down: bitcoin can fall if someone mass produces hacking tools and gold can go down if someone gets going on sea bed mining in a big way.