When the herd is convinced that gold is going to the moon it's time to sell.
Of course gold can go higher but its current market price is much higher than its intrinsic value. I think we'll see a bearish decade for gold.
When Ray Dalio says at Davos that cash is trash and to buy gold not Bitcoin, it means it's probably a good time to sell gold and stocks for cash and Bitcoin or even better, Ripple XRP.