More like bitcoin has the potential to be the reserve asset of central banks, replacing gold. A central bank is a central entity, while Bitcoin is a decentralized asset/protocol.
Oh yeah, imagine banks suddenly switching from having to store tonnes of gold in extremely safe deposit boxes to having everything on a little cold storage device that could be not only moved in an instant but also replicated from bank to bank, recovering any of the funds in case of any kind of emergency.
No more trucks and planes filled up with tonnes of gold. All within a single click. It's all a matter of time before it happens.
You can only store a digital gold in a little cold storage device and not physical gold, between I don't think digital gold can be compared to having a physical gold at all,
Still don't make sense because there must be an actual gold somewhere to match with the ones on the little gold storage otherwise it will remain digital and can not be useful in the real world except online, so in essence, having having those tonnes of gold bars is still very important.