Why is it that when you feel sad, you can't remember for how long you've been sad, but if it's hours it feels like days, and if it's days it feels like weeks, and if it's weeks it feels like years, ad infinitum? And you can't remember what it was like when you were happy? And you're convinced that even if you were happy before, it could only have lasted a few fleeting minutes? Whose idea was that? Because it's crap.
