bitcoin will surpass gold if the price is very stable, when people have used bitcoin as a daily currency, but of course gold still exists in the future, for storing value as well as jewelry
If demand continues to rise or remains same as well it will easily surpass gold as returns in crypto is far better than that of the gold . But yes gold is widely accepted and btc by far is still being not accepted in few counties which could be another reason .
Well, time to time bitcoin will have a mass adoption just like gold if they are the same time found maybe bitcoin now can surpass the gold since gold was the first found than bitcoin. I never doubt with bitcoin I think it has a high chance to surpass gold because I believed on bitcoin that in more demand and less supply will make expensive itself. But who knows, let just time can speak and wait.