I'm currently in my final year of an aircraft propulsion PhD and have become passionate about plasma physics, due to its fluid like similarities. I find engineering too-well-defined for my liking and would like to research in a less well defined field, i.e. physics. I am considering taking a plasma research MSc to fill my knowledge gap and hopefully enable me to be considered for a plasma physics postdoc. However, I saw a documentary on the JET Fusion Lab and Brian Cox (physicist) described the work as being somewhat routine i.e. well defined research. My questions are; how much room is there for fusion plasma physicists to perform 'fundamental' research? Is it becoming more of an engineering problem than a scientific one? Would the move to plasma physics likely satisfy my thirst for understanding rather than engineering manipulating? Thanks for your time, any help is much appreciated.