Software development is inherently unpredictable because the software target landscape is intrinsically chaotic (a very small change in target can introduce a v

Software development is inherently unpredictable because the software target landscape is intrinsically chaotic (a very small change in target can introduce a very large change in effective resulting energy needed to reach the target), and every new project inevitably means a new target (if not no software development would be needed as you'd already have the software).