In my opinion, Gold is the ultimate currency of central banks and more transparance and safety than Bitcoin ( CMIIW )
Although Bitcoin has jumped multi-fold in the last few months, it is likely to continue appreciating in US dollar terms over the coming years.
Maybe, Bitcoin's market cap will surpass gold's market cap by 2030. But, both gold and cryptocurrency have their own merits and demerits. It all depends on the sole discretion of where you wants to invest. That's my opinion though, cheers!