Its price is driven by the greater fool theory.

它的价格是由更大的傻瓜理论驱动的。

The foremost explanation is the greater fool theory: Buyers justify their purchases by assuring themselves they will find a greater fool who will pay even more.

买入方深信自己能找到下一个甘愿出更高价格的冤大头，从而认为自己的买卖是合理的。