Gold is real.
Bitcoin is the very definition of 'vapour'.
When the great wealth of the world goes into panic mode, when equities are total shit, governments are looking increasingly insolvent, and central banks don't have anymore tools up their sleeves except for even more negative interest rates, where are is the great wealth gonna go? Into a experimental and flawed prototype digital token, that the Chinese government could kill at the snap of a finger if they had the mind to do so, or into a rare valuable commodity, produced in the very final moments of a dying star, and which has been sought after and viewed as a representation of wealth by humanity for thousands of years.
Of course no one ran to Bitcoin before, because Bitcoin wasn't invented yet.
You knew what happend the last time the economy crashed? Some genius or geniuses invented Bitcoin as a solution.
Gold never solved the problem, maybe Bitcoin won't solve it either, but it is a new option, and it's better than gold. If even a fraction of the people that normally flee to gold realize this, Bitcoin will skyrocket.
Why not take a leap of faith and invest 2-5% of your wealth in Bitcoin just in case? What's the worst that can happen? Is losing 2-5% of your wealth going to ruin you? If it takes of you might end up 10 times as rich.
It's an assymetrical trade if I ever saw one. If you win, you win so big it will change your life, if you lose, meh, you just lost some pocket change, who cares.