But in my opinion many gold investors are now starting to switch to bitcoin because just looking at the price can protect their assets, and when that happens traders only need to shoot prices because there will be many bitcoin buyers.
Protect asset: both gold and bitcoin are considered as means for asset storage. They are all volatile but the volatility of bitcoin is higher than gold's.
At current price and past few months growth of bitcoin and gold, gold temporarily is safer than bitcoin to protect your asset. In a different aspect, profit earning, bitcoin is better than gold. People are investing more capital into bitcoin in recent months because of this and after they witness a massive investments from institutes. Institutional bubble or not, I don't know and only can give answer this. In belief, it is not a bubble.