Back in school I used regularly meet this homeless guy and very often bought him subway and talk to him. One day he showed me his book which I saw him scribble

Back in school I used regularly meet this homeless guy and very often bought him subway and talk to him. One day he showed me his book which I saw him scribble some notes plenty a time, during one of these on/off conversations he told me that he holds a PhD from some univ. in Europe. What intrigues me is that he had some background in astronomy or some similar field of science but the way he would explain things & would always make me wonder how can such an intelligent guy be homeless... This post brought back those memories as if I am reliving it now..hope in humanity still exists.