You don’t and you should not pretend to know the future. But what you do know is what you can do now and how you can be creative about your own next small thing. And hopefully it will be come bigger and better.
Will it be the next big thing? Honestly, I don’t know. But you can do it. When it sees the light of day then it is well worth it versus an idea that sits in the deep recesses of your grey matter. Or trying to figure out what is the next big thing.
What are you working on next?