So here's the deal... I'm in medical school and am planning on doing a residency in Radiation Oncology... Is it possible to segue into a career in Physics later on in life? Say once you are in your forties? I saw somewhere else on this forum that most theoretical physicists were under the age of 30 or something like that... I am finding that I am more interested in the physics aspect of science than the medical. Radiation oncology has the most physics in it of all the medical fields (thus the reason I am heading towards that), but I was just curious to see what you guys thought about heading towards physics after practicing as a radiation oncologist for a while. Thanks!