> Particularly, it is the predisposition, caused by cognitive biases such as rosy retrospection, to view the past more favourably and the future more negatively.<p>This sounds like an attempt to bypass the need for an actual argument for your position by painting your opponents as dupes who are in thrall to their cognitive biases.<p>One could just as well write about "improvism" that it's "the predisposition, caused by cognitive biases such as rosy prospection, to view the future more favourably and the past more negatively." This would bring the same amount of valuable content to an argument, i.e. nearly zero.<p>It's obvious that it's possible both for things to get better and to get worse, so if you want to argue for one or the other, please bring some actual evidence, not just generalities about an "ism" with which the other side is afflicted.