Some software-related work, like regular changes to a website, or regular SRE work, is understandable and relatively repeatable.
Software development work usually isn't. Software development, by its nature, automates away everything repeatable and predictable, so unpredictable and never-before-seen stuff dominates.
Software development work usually isn't. Software development, by its nature, automates away everything repeatable and predictable, so unpredictable and never-before-seen stuff dominates.