I'm not 100% how gold etfs work, but I'm p sure you're just investing in companies that own gold. You own a piece of the company instead of actually owning the gold.
Gold money you own however much gold you are willing to purchase. They keep it secure for you at no charge. You can cash in at any time and they will mail you your gold for a small shipping fee. You can also trade/exchange your gold for money and even use it at the (very few currently) places that except gold money.
The returns aren't as good as the stock market or even some of this made up ecurrency, but the price of gold will never tank like those will.
Gold is a safe haven stock. So you should always keep a little bit of gold.
Bitcoin is going up SUPER FAST so I think it's heading for a crash.
It survived a "crash" when the bitcoin cash thing happened, it dropped from mid 8k's back to 5.5. And now it's over 10k. I don't have any bitcoin though I withdrew what I had (150 dollars worth) after transferring 100 dollars to iota.
