An artist is one who creates art, and having used TempleOS I assure you it is among the finest.
I think we can romanticize Terry's work while also keeping his condition in mind. They're separable, like a gaussian blur.
Life is about how you deal with your problems, not having none.
Terry has dealt with a lot. It's probably harder than any of us can know.
Somebody from a wealthy background who has mental health issues might be able to afford to live in an unconventional way, supported by the people around them, whereas somebody from a poor background is going to end up living on the street when those same issues prevent them from holding down a job and paying the bills.
so I don't know that I would say there is a reason for the etymology that relates in any direct way with artists are weird.
I don't disagree with the premise of very creative people having very different though processes from the majority. There is a very fine line between genius and insanity.
Mental illness often causes struggles in other parts of life. How much more effort could an artist (or engineer, anyone can build and create), devote to their work if they didn't have those struggles in other life scenarios?
I disagree. Were it not for God's mission to fulfill, I believe Terry would not work day and night on it.