retired physics teacher. Taught FORTRAN last century. (My students used bubble cards!). Then BASIC. Then VisualBasic. After 10 years of writing textbooks and novels, I decided to dust off the programming brain cells and teach myself Objective-C and Xcode. I bought a half-dozen books, and typed in tutorials from the internet.
This site has saved my bacon several times. Thanks to those who asked and answered questions. -Rob