Gold has been growing non stop since the 2000s. It was going down since 1980.
I think gold will explode and hit a top in the next 5 years or so, especially as/when the real estate market turns. Which we might be close.
And then eventually gold is also shown to be paper/manipulatable (I think this will be a faster collapse than real estate because gold is more manipulatable/obscure than real estate, it'll be faster for people to understand that it's not the best) and then Bitcoin starts taking more capital (because it is the best, as we know :))
I think eventually all roads lead to Bitcoin but most people only learn the hard way so it takes a bit of time.