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, it tends to have a bigger impact on future volatility than when it goes down. This is especially true in extreme situations. Over a week, this pattern is similar to what we see in stock markets, and it gets stronger when Bitcoin's value is more unpredictable. Compared to stocks, Bitcoin's volatility changes a lot and is harder to predict.