This time, the blow dryer cheating case has brought a long-standing issue back to the forefront: the biggest fear in prediction markets is not volatility, but overly single data sources. Vitalik mentioned that at least three independent data sources should be used to take the median, which is very straightforward—if the rules are lax, no matter how hot the market is, people will find loopholes. For $ETH , this kind of discussion isn't considered highly stimulating, but it will continue to elevate the importance of oracles and data reliability. $ETH