Can I talk about Physics? I know that well, but I know depression, schizophrenia and bipolar from life. You see I studied advanced math (very advanced), physics, geology, antropology, political science, French, Latin, Spanish, German, Hebrew, Greek, Hindi, Industrial Hydraulics, Electical Engineering, System Engineering, English compostion, Japanese, Chinese, and some other stuff, in school or online. And I've lived some of that learning, meaning applying it in reality. The real world. Now the head stuff, I had to learn to survive and help my family survive. That's like my martial arts: learned the hard way.