It's a roll of the dice, you just have to make an educated guess. The best you can do is look at the status of the industry in general and the people involved in the project. If you think they're working hard and have good ideas, and you trust that crypto in general has a lot more to grow, then it's worth a bet. Due to the volatility, I don't recommend putting much of your money on these. Like I mentioned, it's kind of like buying a lottery ticket, but with better odds.