Bitcoin already surpass gold, that's obvious. I know people who sell their bitcoins to buy gold and the lose tons of money with that stupid investment.
I don't know what's the market capitalization of gold, but for sure bitcoin can fight vs that.
People might be selling and buying gold but they dont loose money . they intend to do it because gold is useful in many ways not just for investment . they may buy gold ( the jewelry ones ) and use it as acesory for thier bodies . they may buy pure gold as an investment .
bitcoin and gold are both different in my opinion because one is digital while other is physical . theres no point of comparing them to one another .