[sixo]

These terms are tricky. I wrote the above because I wish a message like that had gotten through to me (probably just saying it isn't sufficient) at any point in the ~half my life so far where I was, according to this terminology, sad by some circumstance like the above, but also depressed basically I think as a result of being sad and basically having surrendered to it as an inevitable thing: life was by any reasonable measure going well, but I was never happy with it. Some of the above examples reflect my experience, some the experiences of other depressed people I've known. Likely this does not apply to all (maybe most) cases of depression, maybe it wouldn't have helped mine. But I basically feel now, with most of it behind me - I hope - that I never really realized that these sorts of problems could be addressed, or felt ashamed of being unhappy with my situation and therefore decided they didn't deserve to be fixed.