The training is very intensive intellectually. You need to know a lot of hard facts and apply what you know in clinical practice. In the oral board exam, you have to quote evidence from papers and data in the literature for every single answer you give. Currently, the systemic therapy that has been proven to improve survival is chemotherapy. The latter sensitizes RT. I agree that we have to deal with end-of-life issues, so if one is not comfortable with dealing with dying patients, oncology might not be a good choice for the person. But we treat a lot of benign diseases as well e.g. AVM's, trigeminal neuralgia, keloids, heterotopic bone formation, Graves' ophthalmopathy, meningiomas, acoustic neuromas, coronary artery disease, pituitary adenomas, pterygium, ...etc. For malignant diseases, we cure >90% of early stage seminomas, 80-90% of early stage Hodgkin's disease, 80% of early stage cervical cancer, 80-90% of endometrial cancer, ...etc. For metastatic disease, most of the cases are palliative with a few exceptions. But palliative XRT can relieve very distressful symptoms. Do a rotation in radiation oncology and find out whether you like it or not. If you decide to do it, it's important to buff up your CV gearing towards rad onc. The match rate was among one of the lowest last year and it seems that the competition is even more vigorous this year. Doing some research projects in radiation oncology might help. 🙄