There are always people who like to compare bitcoin with gold. In fact, they are two completely different things. The value of gold comes from its scarcity. It is a rare metal on earth.
People always think that "a small amount is good"，but we can imagine that if one day we can go to other planets to mine gold, and some planet is full of gold, then the value of gold will be greatly reduced.
Bitcoin is a perfect currency structure, and its total amount is limited. Even in the entire universe, it is only 21 million pieces.