Becoming permanently disabled in my 40s was emotionally stunting. After all, when you retire before 50, what exactly are you supposed to do with the rest of your life? We all imagine that when we finally retire we will travel around the world, or study, or sit in coffee shops maligning scruffy teenagers, or do any number of fun things by choice. But the reality is that when that day finally comes, our bodies and abilities may not be so cooperative. Or worse, like myself, you may find yourself...