On the other hand (and for balance), some of the more outstanding biomeds I ever met were what you might call "perpetual students" (or maybe that should be "scholars"). Not in the sense of formal courses and qualifications (some of the best blokes had next to none), but rather the enquiring mind set, thirst for knowledge (just
had to know), real understanding, mastering their art, enjoyment of discussions with their peers ... and stuff like that. As I have been known to remark before, successful biomed is more about personal qualities (attitudes, mainly) than anything else.
You just need to set aside the pen when picking up the screwdriver (and
vice versa). If you don't have the schematics - sit down and think about it, then sketch out your own!
I believe that "learning by doing" always works well. Even experienced techs spend time mulling stuff over on completion of a job. "Ah yes, now I understand what the machine is doing" and/or "why did that work? ... how could I have been more efficient"? We used to call it "the debrief" - or, if you like, "follow up".
That's how you really learn (if, that is, you're interested in doing practical, useful - paying - work)! And happily it's become a whole lot easier these days, with the wealth of the internet available.
And don't forget (as Richard Feynman said):- "What one fool can understand, another can"!
In short, a bloke would learn more of real value in a single field trip to Africa than on any number of BSc's, MSc's ... or any other Sc's.
