I think the message is at its core a good one, but I think there's a meaningful/important difference between pessimism and having the ability/capacity to defens

I think the message is at its core a good one, but I think there's a meaningful/important difference between pessimism and having the ability/capacity to defensively imagine all the ways in which something could go wrong. I think the author alludes to this somewhat, but I don't think this is quite as simple as "I'm being pragmatically and usefully pessimistic, but be careful with the pessimistic tendency". Pessimism seems to be pervasive, and can spill into other areas of life. The form of pragmatism described can be learned, self contained, and is not inherently a pessimistic endeavor, even if pessimism is a natural pathway to the skill. Pessimism was hammered into me from an early age. I, too, saw my pessimism as a pragmatic tool to be used as I solved problems in the world, and I applied it as such. I allowed this application of pessimism to turn into an acceptance that I was just a pessimistic person, but that's ok <because here's how it helps me>. The trouble is that this is also a path that leads to learned helplessness, a state that by definition one is unable to escape without some kind of intervention or new awareness, because to be in this state is to be unaware of the alternatives. It took quite a few years for me to truly see the dark side, and how my pessimism had actually permeated many other aspects of how I think. And how my success in channeling my pessimism had made me blind to that permeation and the negative impact it had on other parts of my life and daily experience. I don't think the people around me saw me as a pessimistic person, but the internal states left behind by this default state of mind were quite harmful. I realized that it contributed significantly to unhelpful rumination about other things in life. It contributed greatly to my depression and other forms of stuck-ness. It left me missing out on opportunities that I discarded by default. Therapy for the traumatic upbringing that birthed the pessimistic defaults was a huge first step, but the book Learned Optimism (has been mentioned in a few threads lately) is must-read if you find yourself anywhere on the pessimism spectrum. It reframed pessimism for me in a way that was very important, and helped me see that my pragmatic use of pessimism - while useful - did not require me to maintain a pessimistic outlook. Pessimism trained me to think defensively about problems, but is ultimately an artifact that is unnecessary to continue such a practice. I've got a ways to go, but rewiring the pessimistic patterns of thought has made life much better, and I haven't lost my ability to think critically (and when needed, pessimistically) about problems that require this mindset.