Pure Psychology. We settle for what we have if we have no other options. Paraplegics and Lottery winners have the same amount of happiness 6 months afterwards because they see their life as good as it's going to get. But are we truly happy, or are we just settling because we think "This is as good as it's going to get"?
From absquatulate to vituperative, via <a href="http://go.redirectingat.com?id=74679X1524629&sref=https%3A%2F%2Fwww.buzzfeed.com%2Fdanieldalton%2F28-underused-english-words-you-really-need-to-start-using&url=http%3A%2F%2Fwordwarriors.wayne.edu%2F_2016%2Findex.php&xcust=4356702%7CBFLITE&xs=1" target="_blank">Word Warriors</a>.