zoobyshoe
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The question is whether or not you would shift your criteria if Einstein had already completed his PhD and been employed as a physicist when he wrote his famous 5 papers. And whether you would shift it the other way if he had only completed his undergraduate work and not started a PhD yet. In other words, I think you're fitting your criteria to Einstein's situation as it was, because he's too huge to ignore, even though you'd rather have much more stringent criteria. In my mind, Einstein was a full-fledged physicist at that time, not because he was a PhD candidate, but because of the knowledge and expertize he possessed. I mean, he pretty much out-thought everyone in play at the time with those 5 papers, didn't he?Ryan_m_b said:I don't see a problem with calling someone a physicist/biologist/historian/w.e whilst they are doing their PhD. When people refer to Einstein as a physicist are they not always referring to his life as a physicist and not any time before?
I think it would be perfectly normal and acceptable for an out of work physicist to call him/her self a physicist. It's a career, not merely employment. Feynman worked for a time, I think about a year, as a research chemist. I don't think he would have been misrepresenting himself to call himself a physicist during that time. It was a side excursion when he couldn't find the work he really wanted. At Los Alamos he ended up doing more work in computer science than anything else. There was also the time he was commissioned to do a painting for a massage parlor. (Absolutely true.) I don't feel he should have felt obligated to stop referring to himself as a physicist during those other paid activities. His career was physics.My approach to the question is pretty simple: when someone asks you what you do 99% of the time they are asking about your employment, if you respond that you're a physicist then that should be because you are employed as one. The only alternative I can think of that would be acceptable would be if you weren't a physicist most of the time but did regularly contribute papers. Partly this is to protect against abuse but mostly it's because I can't see anything else that makes sense, regardless of job.