So currently I am studying for the physics GRE exam. I hope to apply to physics PhD programs this year so this is my last chance. This is my second time taking it, but still redoing all of the practice tests.
So my process is to take the practice tests and grade them as if they were the real test. Then go through and figure out what I did wrong on any problem that I didn't get. This is aided immensity by grephysics.net which has typed out solutions to each problem and lets users contribute their own solutions.
This time through I got stuck on the following problem: http://grephysics.net/ans/9677/82
I read the answers and I still did not really understand it. I read the users solutions to see if those made more sense to me but they didn't. The first comment I read 3 or 4 times and still had no idea what the author was saying. Then I glanced at the name of the poster, IT WAS ME.
About one year ago, I knew how to solve the problem, and knew well enough to post a solution for others. Now I can not solve the problem and don't even understand my OWN solution. Such a strange feeling to read something many times, not understand it, and only later find out I wrote it. I need to start writing more things to myself since some day what I think now will be unintelligible to myself in the future.
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