In addition to studying CS/SE subjects, gain knowledge in another field, e.g. biology, chemistry, mechanical or structural engineering, etc. Then seek out inter

In addition to studying CS/SE subjects, gain knowledge in another field, e.g. biology, chemistry, mechanical or structural engineering, etc. Then seek out internships and then your first job in a field where the combination of both your areas of knowledge are valuable. Once you are working in the real world you will see problems, some of which you might even know how to solve. You should also build your network both within SE and outside of it. Those are the foundations for a startup.