This is true but it's just not realistic. There are situations in life where expectations are totally appropriate. I'd even argue that expectations drive us forward. And if you have no expectation of an outcome, how can you be happy or sad at all at the end? Or how can you tell there has even been an outcome? If I have to drive somewhere and have no expectation of arrival time then I'll neither be happy nor sad when…
I've had a problem with this for most of my life, sad to say. It works really well for blocking out sad times but it obviously blocks out happy times as well. I have not yet figured out a way to correct this because it's well ingrained. Have any HNers worked out solutions for this?