Just because of Bitcoin's portability,we can't say that Bitcoin will replace Gold in the future. According to me some benefits of one asset are not sufficient for it to replace another asset . I mean  What about the demand and price pattern's? The sources of demand for Gold and Bitcoin are completely different. Gold is used by central banks, it is used in jewellery making and it is used as an investment asset on a large scale. On the other hand there is no such clear usage of Bitcoin.It is used as an investment asset only by those who are familiar with it's potential. In terms of price ,the price chart of Bitcoin is full of rise and drops due to it's volatility but in case of Gold, it is quite stable which makes it more reliable, trustworthy and acceptable than Bitcoin.  No doubt that the adoption of Bitcoin is increasing but I don't think it will be possible for Bitcoin to replace Gold.