I wrote a series of reports and I have explained the results of the experiments, no needs to write the fundamentals/basics, but the OI asked me to explain him the basic theory because he does not understand how I cam with the conclusions. I have to say I cannot because I feel I memorized only the main outcome not the very begin of the basic. That I forgot. I should read again to refresh it. I remember only features of that graph means that because once when I was in school I learn that. Do I have a mental problem? Thank you!