Hi there! It has happened to me these days when I went to a conference that I realised maybe my PhD topic is something I would like to work in after it (IF I continue in the academic path). My current research is based on applying QFT in condensed matter physics, particularly related to the Kondo problem and so. However, I ve seen that most of condensed matter research nowadays is based on high T SC or TOPOLOGICAL stuff, which I have no idea about, but these conferences served me to explore the field a bit, and realise that my interest on it is not that great. On the other hand, Ive always been interested in theoretical physics towards RG and quantum mechanics foundations, and QFT is definitely a subject I like. My doubt is if maybe is getting too late for me in order to switch fields when I end my PhD. Also, when I will be done, presumibly most of my publications (if any) will be in the Kondo problem and related, but not pure QFT in RG or strings. Do you think it will be possible for me to switch after the PhD t get a postdoc? (If you are going to answer something like "Yes, of course you can apply, but wether you get it or not is another question" dont lose time. I m asking more from the side of switching completely from Many Body theory to quantum gravity for example, because the techniques are pretty similar) Thanks in advance!