I've wanted to be a writer since I was a boy, though it seemed an unlikely outcome since I showed no real talent. But I persevered and eventually found my own row to hoe. Ignorance of other writers' work keeps me from discouragement and I am less well-read than the average bus driver.
A theory has only the alternative of being right or wrong. A model has a third possibility: it may be right, but irrelevant.
I'm becoming far more interested in just functionality and making sure my body is as strong as it can be so I can swing my kids around and not worry about aches and pains.