This isn`t financial advice, just something to consider for the more Liquid parts of a portfolio, why not do both? like 60% BTC 30% cash (cash is also a position) and 10% Gold (I prefer Silver).
Just juggle the numbers around a bit to suit your own risk tollerance.
I think this is quite okay and could really make good sense putting 60% on Bitcoin and the rest will be for cash and buying gold. Gold is very volatile but do not appreciate like the way Bitcoin is doing. Bitcoin is one of the volatile coin we can make money from with ease and I am very interested holding for as long as possible. Bitcoin might not have to value we can use to compare with gold but it is quite profitable compared to holding gold. Gold is mostly controlled by the US government which makes the price to be easily manipulated and controlled so that things don't go too far or become worse that would make buyers to dump their gold assets.