TLDR: A product trying to simplify user tasks invariantly makes users want to perform more complex tasks

Tog’s Paradox (also known as The Complexity Paradox or Tog’s Complexity Paradox) is an observation that products aiming to simplify a task for users tend to inspire new, more complex tasks. It’s one of the key reasons for the symptom of requirements changing after delivery in enterprise software products, and for feature creep in consumer products. Tog’s Paradox also explains why it’s futile to try to completely nail down requirements for a software product, as the product itself will have an impact on the users,causing them to demand new functions.