I actually have an idea about Lagrangians that makes them comprehensible, after a fashion. However, the ramifications are even worse than the usual "shut up and calculate" explanation. More later? More later. In my experience, most physicists find the method both so incomprehensible and distasteful that they move on as soon as that particular semester is completed.
Just back from the Santos Fat Tire Fest. It went well, but rained last night and now I have a living room full of tent parts and other camping gear drying out. More posting, with pics, tomorrow.
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