The study looked at how the ups and downs of Bitcoin's value affect its future volatility. They found that when Bitcoin's value goes up a lot in a short time, it tends to keep going up more than when it goes down a lot. This pattern is stronger when Bitcoin's value is very unstable. When predicting Bitcoin's volatility a week ahead, this pattern is similar to what we see in stock markets. Overall, it's hard to predict how volatile Bitcoin will be because its value changes a lot.