> someone shouldn't want to do particle physics and then do plasma physics, it's evidence that person isn't serious That’s such a stupid and harmful thing to s

> someone shouldn't want to do particle physics and then do plasma physics, it's evidence that person isn't serious That’s such a stupid and harmful thing to say. People change and it takes some maturity to realise that what we wanted to do might not actually be a good idea. It’s completely unrealistic to expect even undergrads to actually know how research is done in a specific field, so how could they be sure that they’d like it? One of the best PhD student I have seen in materials chemistry came from biochemistry. It’s much better to go and see somewhere else than persevere and go in an unsatisfying field anyway. That’s the best way of becoming an angry, bitter and resentful little professor. Now that I think of it, it might explain some of my lecturers…