We can say whatever we want comparing bitcoin to gold, gold is still the safest asset to invest your money. Bitcoin is still too much volatile to be considered as safe. With gold you may not make a profit but it won't make you loose money, while with bitcoin you may lose 10% in 1 day wich is a lot when yu are investing, specialy a big amount
Gold can be safest asset to invest money yes but depends on country if they're good supply of gold. Here in my country we lack of gold that's why my country men are choosing bitcoin we can do invest too and we can stock them bitcoin are price are not stable this why we depend to buy when the price is low and sell them when the price is rising. I don't lose bitcoin when you know when and to where invest them.