Good to diversify, 50% gold and 50% bitcoin..
Maybe throw some stocks in the mix
What if physical bitcoin that made of gold? 
that is possible right? but what is the value? according to gold or to bitoin?
that is possible right? but what is the value? according to gold or to bitoin? Cassius coins, silver wallet, gold wallet.... The idea has been tried before.
What about a coin backed by Gold and by a trusted centralised company?