Never. Bitcoin cannot replace Gold. We have to admit it. It may compete with Gold as a store of value and perhaps even become the preferred option for a short time but it will never replace Gold. Gold will always be gold. The preciousness of Gold is as old as civilization itself. And Bitcoin is not the one to make it worthless.
Absolutely right. Gold is gold and Bitcoin cannot replace it or any other crypto currencies. Their store of value can be compared but they are extremely different in all forms. This precious tangible metal (Gold) will remain its value as the years and even decades go by...I do believe that nothing can replace it.
Bitcoin may be able to outprice Gold, but as you said, gold will be gold.
A lot of known personalities in the investing and trading community put their full trust into Gold in terms of this manner. Bitcoin for most of the people are still doubtful and some even call it a scam. The possibility is still there, people are still debating but I think it will still be Gold and it will continue running until it doesn't want to like Forrest Gump.