I still have a long time to decide, but I am interested in the fields of particle physics, astrophysics, and cosmology. Here are my questions about them: 1. What field has the best outlook for the future? 2. Is there a degree that provides flexiblitiy in the choice? 3.What fields have the most overlapping of topics/study? 4.This is my most important question. I read an 2 articles saying that the field of theoretical physics is dead and that no more discoveries can be made. Is this true?