The biggest factor in my opinion might be law. Because the absence of a law for cryptocurrency makes this very risky. Because if we get hit by an ico scam, our money will immediately disappear. So the law is very important in my opinion. It's only the strongest in my opinion, actually because virtual and so on also become a risk. So this depends on your perception of seeing this. So if you want to invest in ico. Then you need to think carefully. That is all.